Specifications
Company "áliter-Aksi"
| |
OKP 15 2300 7
|
Group I 25
APPROVE
General director
The "Aliter-Aksi" company
_____________ á.B. Zhidkov
"___" ________ 2005 y. |
MIXES FIRE-RESISTANT CONCRETE HEAT-INSULATING
SILICA-ALUMINA AND ALUMINOUS
Specifications
Specifications 1523-005-39488360-2000
For the first time
Letter A, sheets 8
Date of introduction 01.07.2000
AGREEED
|
|
DEVELOPED
|
The chief engineer of Joint-Stock Company "Souzteplostroi-Petersburg"
|
|
The chief engineer of Open The "Aliter-Aksi" company
|
__________V.E.Chapkevich
|
|
______________V.V.Vlasov
|
"___" ____________ 2005y.
|
|
"___" ______________ 2005y.
|
| |
|
The head of development
|
| |
|
Director on fire-resistant materials of Open The "Aliter-Aksi" company
|
| |
|
______________D.E.Denisov
|
| |
|
"___" ______________ 2005y.
|
2005
The true specifications extend on a mix concrete fire-resistant warm- insulation silica-alumina and aluminous (further - mixes), made on the basis of porous fillers and aluminous cement.
Mixes are intended for heat-insulating various thermal units and manufacturing fire-resistant concrete heat-insulating products.
Depending on a kind of a filler, the cement, a Seeming density and maximum permissible temperature of application of a mix subdivide into the marks specified in table 1.
Table 1
| Name of mark |
Name of trade mark |
Decoding of mark |
Sôá-0,5-1000 |
áLAKS-0,5-1000 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 0,5 g/sm3 and temperature of application no more than 1000 ó |
Sôá-0,6-1000 |
áLAKS-0,6-1000 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 0,6 g/sm3 and temperature of application no more than 1000 ó |
Sôá-0,7-1000 |
áLAKS-0,7-1000 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 0,7 g/sm3 and temperature of application no more than 1000 ó |
Sôá-0,8-1000 |
áLAKS-0,8-1000 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 0,8 g/sm3 and temperature of application no more than 1000 ó |
Sôá-0,9-1000 |
áLAKS-0,9-1000 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 0,9 g/sm3 and temperature of application no more than 1000 ó |
Sôá-1,0-1000 |
áLAKS-1,0-1000 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 1,0 g/sm3 and temperature of application no more than 1000 ó |
Sôá-1,2-1200 |
áLAKS-1,2-1200 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 1,2 g/sm3 and temperature of application no more than 1200 ó |
STSH-1,4-1250 |
áLAKS-1,4-1250 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 1,4 g/sm3 and temperature of application no more than 1250 ó |
STSH-1,4-1350 |
áLAKS-1,4-1350 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 1,4 g/sm3 and temperature of application no more than 1350 ó |
STK-1,6-1600 |
áLAKS-1,6-1600 |
Mix heat-insulating concrete on the basis of silica-alumina a porous filler with a Seeming density 1,6 g/sm3 and temperature of application no more than 1600 ó |
Mixes can produced in the form of, modified for those or other conditions of application. Trade marks of the modified mixes can contain additional indexes, for example:
AL - mixes for the aluminium industry;
T - mixes for shotcreting.
Such mixes should satisfy to the same technical requirements, as their not modified analogues.
Example of record of a symbol of production at its order: "Mix concrete heat-insulating marks of STA 0,7-1000 on Specifications 1523-005-39488360-2000" or "Mix concrete heat-insulating marks áLAKS 0,7-1000 on Specifications 1523-005-39488360-2000 ".
1 Technical requirements
1.1 Mixes should meet to requirements of the true specifications and the technological instruction approved when due hereunder.
1.2 Mixes on physicotechnical parameters should meet to the requirements specified in table 2.
Table 2
| Name of parameter |
Norm for mark |
| STA-0,5-1000 (áLAKS 0,5-1000) |
STA-0,6-1000 (áLAKS 0,6-1000) |
STA-0,7-1000 (áLAKS 0,7-1000) |
STA-0,8-1000 (áLAKS 0,8-1000) |
STA-0,9-1000 (áLAKS 0,9-1000) |
STA-1,0-1000 (áLAKS 1,0-1000) |
STA-1,2-1200 (áLAKS 1,2-1200) |
STSH-1,4-1250 (áLAKS 1,4-1250) |
STSH-1,4-1350 (áLAKS 1,4-1350) |
STK-1,6-1600 (áLAKS 1,6-1600) |
1 Seeming density, g/sm3, no more
|
0,5
|
0,6
|
0,7
|
0,8
|
0,9
|
1,0
|
1,2
|
1,4
|
1,4
|
1,6
|
2 Strength at compression, N/mm2, not less:
|
|
|
|
|
|
|
|
|
|
|
in 3 day after formation
|
0,5
|
0,8
|
1,0
|
1,5
|
4,0 (2,0)
|
5,0 (3,0)
|
7,0 (4,0)
|
15,0
|
15,0
|
20,0
|
after heat treatment at 800 ó °ó
|
0,5
|
0,7
|
0,8
|
1,0
|
2,0 (1,0)
|
3,0 (1,5)
|
4,0 (2,0)
|
5,0
|
7,0
|
10,0
|
3 Heat conductivity at average temperature 500 °ó, Vt/(mK), no more than
|
0,14
|
0,16
|
0,18
|
0,21
|
0,25
|
0,30
|
0,40
|
0,50
|
0,50
|
0,60
|
Notes.
Parameters on item 1 and 2, allocated by a fat font, are obligatory for the characteristic of each set. Norms on strength at the compression, specified in brackets, are established for the mixes produced with use aluminous of cement in accordance with GOST 969-91. |
1.3 Packing of mixes in accordance with GOST 24717 with additions on 1.3.1-1.3.2.
1.3.1 Mixes deliver in the form of two components: a filler packed into a multilayered paper bag under the normative document, and cement in packing manufacturer. Thus on one bag of cement the integer of bags of a filler should is necessary.
1.3.1.1 Packing of mixes in one multilayered paper bag is supposed by next ways:
- completely fill with a ready mix;
- all over again fall asleep a filler, and from above stack in tight packing cement.
1.3.1.2 Other packing of mixes providing them safety at transportation and storage is supposed.
1.3.2 Weight of a bag should not exceed (50 ± 0,5) kg.
1.4 Marks of mixes - in accordance with GOST 24717 with additions on 1.4.1-1.4.2.
1.4.1 At packing mixes on 1.3.1 on each bag with a filler put the following information:
- name and the address of manufacturer;
- mark of a mix;
- designation of the true specifications;
- inscription "filler";
- net weight.
Bags with cement should contain marks of manufacturer.
2 Acceptance procedures
2.1 Mixes accept in lots. The set should consist of a mix of one mark. The weight of a set should not exceed 70 tons.
2.2 For control quality check of mixes and conformity to their requirements of the true specifications spend acceptance tests according to 1.2.
2.3 For carrying out of acceptance tests of mixes select not less than one bag of a filler and a bag of cement or one bag with a mix.
2.3.1 Tests of a filler and cement dose out according to the set parity and then carefully mix for reception of a concrete mix.
The common test of a mix should be not less the quantity necessary for preparation of samples.
2.3.2 Mix from a bag carefully mix also a method quartation reduce up to the quantity necessary for preparation of samples.
2.4 Preparation of control test pieces
2.4.1 For definition of a Seeming density and strength at compression control samples in the form of a cube with the size of an edge (100 ± 3) prepare mm, and for heat conductivity - in the form of a rectangular parallelepiped with the sizes 100?100?(65-32) mm with maximum deviation on length and width ± 3 mm.
Control samples produce in accordance with GOST 10180 of a mix after ÚÁÔ×ĎŇĹÎÉŃ its water in accordance with GOST 23732 by formation in the demountable metal form in accordance with GOST 22685. Samples maintain in the form of not less than 12 hours, then the form open, samples establish on an equal surface and keep in conditions of not supposing drying a surface of samples. Hardening of samples occurs within 3 day in to temperature of air 5-25 ó. Then samples dry up at temperature (100 ± 10) ó up to constant weight, and if necessary subject to heat treatment at temperature (800 ± 20) ó within 4 hours. Speed of rise of temperature at drying - no more than 50 C/hour, at heat treatment - no more than 200 C/hour. Wrought samples test after cooling up to a room temperature.
A Seeming density and heat conductivity determine on wrought samples, strength at compression - on samples in 3 day after formation and after heat treatment.
2.4.2 Quantity of samples and periodicity of tests are brought in table 3.
Table 3
| Name of parameter |
Quantity of the samples who are a subject tests, pieces |
Periodicity of carrying out of tests |
Seeming density |
3 |
From each set |
Strength at compression: |
|
|
in 3 day after formation |
3 |
From each set |
after heat treatment |
3 |
From each set |
Heat conductivity |
1 |
Under the agreement of parties |
2.5 Set should be accompanied by the quality certificate containing:
- name of manufacturer and his address;
- mark of mix;
- date of manufacturing;
- results of acceptance tests;
- designation of the true specifications.
2.6 At reception of unsatisfactory results of tests even on one of parameters, on him spend re-testing on the double quantity of the samples prepared from the same sample. Results of re-testing extend on all set and are final. At unsatisfactory results of re-testing a set reject.
3 Quality monitoring
3.1 Seeming density determine on samples on 2.4.1. The sample weigh on weights under the normative documentation with a limit of an admissible error ± 0,2 the Linear sizes of the sample of the cubic form measure, roughly, in the middle of each side by a metal ruler in accordance with GOST 427 or sliding calliper in accordance with GOST 166. For result of measurement of length of an edge accept average arithmetic value from six measurements.
Seeming density ρs, g/sm3, count under the formula:
where m - weight of the sample, g;
V - settlement volume of the sample, sm3
3.2 Strength at compression determine in accordance with GOST 4071.2 on samples on 2.4.1
3.3 Heat conductivity determine in accordance with GOST 12170 on samples on 2.4.1 at average temperature 500 ó.
3.4 Marks, packing and completeness of mixes check visually.
4 Transportation and storage
4.1 Transportation and storage in accordance with GOST 24717 with addition on 4.1.1
4.1.1 Mixes keep in the conditions excluding humidifying and damage of packing
5 Manufacturer's guarantees
5.1 Mixes should be accepted by checking department.
5.2 Manufacturer guarantees conformity of mixes to requirements of the true specifications at observance by the consumer of conditions of transportation and the storage, installed by the true specifications.
5.3 Warranty period of storage of mixes is installed by the manufacturer. After the expiration of a warranty period of storage of a mix can be used to destination after preliminary check of their quality on conformity to requirements of the true specifications.
Appendix A
(Help)
The list of normative documents on which there are links in the text of specifications
GďSô 166-89 |
Sliding calliperes. Specifications |
GďSô 427-75 |
Rulers measuring metal. Specifications |
GďSô 4071.2-94 |
Products fire-resistant heat-insulating. A method of definition of strength at compression at a room temperature |
GďSô 10180-90 |
Concrete. Methods of definition of durability on control samples |
GďSô 12170-85 |
Refractories. A stationary method of definition of heat conductivity |
GďSô 22685-89 |
Forms for manufacturing control samples of concrete. Specifications |
GďSô 23732-79 |
Water for concrete and solutions. Specifications |
GďSô 24717-94 |
Refractories and raw material fire-resistant. Marks, packing, storage and transportation |
Record of changes
| Change |
Number of sheets (pages) |
Total sheets (pages) in document |
Number of document |
Signature |
Date |
| changed |
replaced |
new |
cancelled |
1 |
- |
1-6 |
- |
- |
8 |
14-02 |
|
|
Company "áliter-Aksi"
| |
OKP 15 2300 5
|
Group I 25
APPROVE
General director
The "Aliter-Aksi" company
_____________ á.B. Zhidkov
"___" ________ 2005 y. |
MIXES FIRE-RESISTANT CONCRETE HEAT-INSULATING
SILICA-ALUMINA AND ALUMINOUS
Specifications
Specifications 1523-003-39488360-2000
(In exchange Specifications 1523-003-39488360-96)
Letter A, sheets 13
AGREEED
|
|
DEVELOPED
|
The chief engineer of Joint-Stock Company "Souzteplostroi-Petersburg"
|
|
The chief engineer of Open The "Aliter-Aksi" company
|
__________V.E.Chapkevich
|
|
______________V.V.Vlasov
|
"___" ____________ 2005y.
|
|
"___" ______________ 2005y.
|
| |
|
The head of development
|
| |
|
Director on fire-resistant materials of Open The "Aliter-Aksi" company
|
| |
|
______________D.E.Denisov
|
| |
|
"___" ______________ 2005y.
|
2005
The true specifications extend on a mix concrete fire-resistant silica-alumina and aluminous (further - mixes) on aluminous cement. Mixes are intended for liner various thermal units and manufacturing of fire-resistant concrete products.
Depending on a kind of a filler, mass fraction Al2O3, CaO, strength at compression after heat treatment at 800 ó mixes subdivide into the marks specified in table 1.
Table 1
| Name of mark |
Name of trade mark |
Decoding of mark |
SSH-30-10 |
áLKOR-37-25 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 30 % and strength at compression after heat treatment at 800 °ó not less than 10 N/mm2 |
SSH-30-20 |
áLKOR-37-40 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 30 % and strength at compression after heat treatment at 800 °ó not less than 20 N/mm2 |
SSH-37-25 |
áLKOR-37-50 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 37 % and strength at compression after heat treatment at 800 °ó not less than 25 N/mm2 |
SSH-37-30 |
áLIT-37 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 37 % and strength at compression after heat treatment at 800 °ó not less than 30 N/mm2 |
SGI-37K |
áLKOR -40K |
Mix on the basis of aluminous a filler with mass fraction Al2O3 not less than 37 % |
SSH-42 |
áLKOR -45 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 42 % |
SSH-50/5 |
áLKOR -56/5 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 50 % and CaO no more than 5,0 % |
SSH-44-50 |
áLIT-42 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 44% and strength at compression after heat treatment at 800 °ó not less than 50 N/mm2 |
SSH-46-50 |
áLIT-42A |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 46% % and strength at compression after heat treatment at 800°ó not less than 50 N/mm2 |
SSH-44-70 |
áLIT-42R |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 44% and strength at compression after heat treatment at 800°ó not less than 70 N/mm2 |
SSH-46-70 |
áLIT-42AR |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 46% and strength at compression after heat treatment at 800°ó not less than 70 N/mm2 |
SSH-35-20 |
áLIRAM -35S |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 35% and strength at compression after heat treatment at 800°ó not less than 20 N/mm2 |
SSH-45-80 |
áLIRAM -42áň |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 45% and strength at compression after heat treatment at 800°ó not less than 80 N/mm2 |
SMK-50/1,5 |
áLKORIT -53/1,5 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 50 % and CaO no more than 1,5 % |
SMK-50/2,5 |
áLKORIT -53/2,5 |
Mix on the basis of chamotte a filler with mass fraction Al2O3 not less than 50% and CaO no more than 2.5% |
SMK-76 |
áLKOR -76 |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 76 % |
SMK-78 |
áLKOR -76A |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 78% |
SMK-76-60 |
áLIT-72 |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 76 % and strength at compression after heat treatment at 800°ó not less than 60 N/mm2 |
SMK-78-60 |
áLIT-72A |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 78% and strength at compression after heat treatment at 800°ó not less than 60 N/mm2 |
SMK-76-80 |
áLIT-72R |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 76 % and strength at compression after heat treatment at 800°ó not less than 80 N/mm2 |
SMK-78-80 |
áLIT-72AR |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 78% and strength at compression after heat treatment at 800°ó not less than 80 N/mm2 |
SMK-76-100 |
áLIRAM -72AR |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 76% and strength at compression after heat treatment at 800°ó not less than 100 N/mm2 |
SMK-85/1,5 |
áLKORIT -85/1,5 |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 85 % and CaO no more than 1,5 % |
SMK-85/1,0 |
áLKORIT -85/1,0 |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 85 % and CaO no more than 1,0 % |
SMK-85/0,6 |
áLKORIT -85/0,6 |
Mix on the basis of mullitecorundum a filler with mass fraction Al2O3 not less than 85 % and CaO no more than 0,6 % |
SK-83-80 |
áLIT-83 |
Mix on the basis of corundum a filler with mass fraction Al2O3 not less than 83 % and strength at compression after heat treatment at 800°ó not less than 80 N/mm2 |
SK-94 |
áLKOR -94 |
Mix on the basis of corundum a filler with mass fraction Al2O3 not less than 94 % |
SK-96 |
áLKOR -96 |
Mix on the basis of corundum a filler with mass fraction Al2O3 not less than 96 % |
SK-97-50 |
áLIT-97 |
Mix on the basis of corundum a filler with mass fraction Al2O3 not less than 97 % and strength at compression after heat treatment at 800°ó not less than 50 N/mm2 |
SK-98 |
áLKORIT -98 |
Mix on the basis of corundum a filler with mass fraction Al2O3 not less than 98 % |
It is recommended to apply at the order the trade mark of concrete mixes of series "áLKOR", "áLIT" and "áLKORIT":
"áLKOR " - concrete normal mix;
"áLIT " - concrete mix with the lowered contents of cement;
"áLKORIT" - concrete lowcement a mix;
"áLIRAM" - concrete mix for drawing by a method of stuffing.
Mixes can produced in the form of, modified for those or other conditions of application. Trade marks of the modified mixes can contain additional indexes, for example:
Al - mixes for the aluminium industry;
S - self-spreading mixes;
T - mixes for shotcreting.
Such mixes should satisfy to the same technical requirements, as their not modified analogues.
Example of record of a symbol of production at the order: "Mix chamotte concrete on aluminous cement of mark SSH 30-10 on Specifications 1523-003-39488360-2000" or "Mix concrete marks áLKOR 37-25 on Specifications 1523-003-39488360-2000".
Terms with the corresponding definitions, used in the true specifications, are brought in appendix A.
The list of documents on which there are links in the text of specifications, is brought in the appendix.
1 Technical requirements
1.1 Mixes should meet to requirements of the true specifications and the technological instruction confirmed when due hereunder.
1.2 Mixes on physical and chemical parameters should meet to the requirements specified in tables 2 and 3.
1.3 Packing of mixes in accordance with GOST 24717 with additions on 1.3.1-1.3.2.
1.3.1. Packing of mixes is made in one multilayered paper bag by next ways:
- bag completely fill with a ready mix;
- in bag all over again fall asleep a filler, and from above stack in tight packing cement.
1.3.1.1 Packing of mixes in the form of two components is supposed: a filler packed into a multilayered paper bag under the normative document, and cement in packing manufacturer. Thus on one bag of cement the integer of bags of a filler should is necessary.
1.3.1.2 Other packing of mixes providing them safety at transportation and storage is supposed.
1.3.2 Weight of a bag should not exceed (50 ± 0,5) kg.
1.4 Marks of mixes - in accordance with GOST 24717 with additions on 1.4.1-1.4.2.
1.4.1 At packing mixes on Đ.1.3.1 on each bag with a mix render the following information:
- name and the address of manufacturer;
- mark of mix;
- designation of the these specifications;
- net weight;
- date of manufacturing.
1.4.2 At packing mixes on Đ.1.3.1.1 on each bag with a mix render the following information:
- name and the address of manufacturer;
- mark of mix;
- designation of the these specifications;
- inscription "filler";
- net weight.
Bags with cement should contain marks of manufacturer.
Table 2 - Physical and chemical parameters of mixes on the basis of silica-alumina fillers
| Name of parameter |
Norm for mark |
SSH-30-10 (áLKOR-37-25) |
SSH-30-20 (áLKOR-37-40) |
SSH-37-25 (áLKOR-37-50) |
SSH-37-30 (ALIT-37) |
SGI-37K (áLKOR-40ë) |
SSH-42 (áLKOR-45) |
SSH-50/5 (áLKOR-56/5) |
SSH-44-50 (ALIT-42) |
SSH-46-50 (ALIT-42A) |
SSH-44-70 (ALIT-42R) |
SSH-46-70 (ALIT-42AR) |
SSH-35-20 (áLIRAM-35S) |
SSH-45-80 (áLIRAM-42AR) |
SSH-50/1.5 (áLKORIT-53/1,5) |
1 Mass fraction, %: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Al2O3, not less than |
30 |
30 |
37 |
37 |
37 |
42 |
50 |
44 |
46 |
44 |
46 |
35 |
45 |
50 |
CaO, no more than |
- |
- |
- |
- |
- |
- |
5,0 |
- |
- |
- |
- |
- |
- |
1,5 |
2 Strength at compression, N/mm2,not less than: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
in 3 day after formation |
25 |
40 |
45 |
30 |
50 |
50 |
30 |
30 |
30 |
40 |
40 |
10 |
15 |
15 |
after thermo-
processings
at 800 °ó
|
10 |
20 |
25 |
30 |
50 |
30 |
30 |
50 |
50 |
70 |
70 |
20 |
80 |
80 |
3 Seeming density, g/sm3, not less than |
1,9 |
1,9 |
1,9 |
1,9 |
2,3 |
2,0 |
2,0 |
2,0 |
2,0 |
2,1 |
2,1 |
1,6 |
2,1 |
2,1 |
4 Temperature of the beginning of a softening, ó, not below |
1100 |
1100 |
1150 |
1100 |
1100 |
1150 |
1250 |
1200 |
1250 |
1250 |
1300 |
1100 |
1200 |
1350 |
Note - Parameters on Đ.2 and 3, allocated by a fat font, are obligatory for the characteristic of everyone of pairs |
Continuation of table 2
| Name of parameter |
Norm for mark |
SSH-50/2,5
(áLKORIT-53/2,5)
|
SMK-76
(áLKOR-76)
|
SMK-78
(áLKOR-76á)
|
SMK-76-60
(ALIT-72)
|
SMK-78-60
(ALIT- 72á)
|
SMK-76-80
(ALIT-72ň)
|
SMK-78-80
(ALIT-72áň)
|
SMK-76-100
(áLIRAM-72áň)
|
SMK-85/1,5
(áLKORIT-85/1,5)
|
SMK-85/1,0
(áLKORIT-85/1,0)
|
SMK-85/0,6 (áLKORIT-85/0,6) |
1 Mass fraction, %: |
|
|
|
|
|
|
|
|
|
|
|
Al2O3, not less than |
50 |
76 |
78 |
76 |
78 |
76 |
78 |
76 |
85 |
85 |
85 |
CaO, no more than |
2,5 |
- |
- |
- |
- |
- |
- |
- |
1,5 |
1,0 |
0,6 |
2 Strength at compression, N/mm2,not less than: |
|
|
|
|
|
|
|
|
|
|
|
in 3 day after formation |
25 |
50 |
50 |
40 |
40 |
50 |
50 |
30 |
25 |
20 |
15 |
after thermo-
processings
at 800 ó |
50 |
30 |
30 |
60 |
60 |
80 |
80 |
100 |
60 |
50 |
40 |
3 Seeming density, g/sm3, not less than |
2,1 |
2,4 |
2,4 |
2,5 |
2,5 |
2,6 |
2,6 |
2,7 |
2,7 |
2,7 |
2,7 |
4 Temperature of the beginning of a softening, ó, not below |
1320 |
1300 |
1330 |
1300 |
1300 |
1300 |
1330 |
1250 |
1500 |
1530 |
1570 |
Note - Parameters on Đ.2 and 3, allocated by a fat font, are obligatory for the characteristic of each set |
Table 3- Physical and chemical parameters of mixes on the basis of silica-alumina fillers
| Name of parameter |
Norm for mark |
SK-83-80
(ALIT-83)
|
SMK-94
(áLKOR-94)
|
SK-96
(áLKOR-96)
|
SK-98
(áLKORIT-98)
|
SK-97-50
(ALIT-97)
|
1 Mass fraction, %: |
|
|
|
|
|
Al2O3, not less than |
83 |
94 |
96 |
98 |
97 |
2 Strength at compression, N/mm2,not less than: |
|
|
|
|
|
in 3 day after formation |
50 |
50 |
30 |
15 |
20 |
after thermoprocessings at 800 ó |
80 |
50 |
30 |
30 |
50 |
3 Seeming density, g/sm3, not less than |
2,9 |
2,8 |
2,8 |
2,9 |
2,9 |
4 Temperature of the beginning of a softening, ó, not below |
1300 |
1700 |
1700 |
1700 |
1700 |
Note - Parameters on Đ.2 and 3, allocated by a fat font, are obligatory for the characteristic of each set
|
2 Acceptance procedures
2.1 Mixes accept in lots. The set should consist of a mix of one mark. The weight of a set should not exceed 70 tons.
2.2 For control quality check of mixes and conformity to their requirements of the true specifications spend acceptance tests according to 1.2.
2.3 For carrying out of acceptance tests of mixes select not less than one bag of a filler and a bag of cement or one bag with a mix.
2.3.1 Tests of a filler and cement dose out according to the set ratio and then carefully mix for reception of a concrete mix.
The common test of a mix should be not less the quantity necessary for preparation of samples. A mix from a bag carefully mix also a method quartation reduce up to the quantity necessary for preparation of samples.
2.4 Preparation of control test pieces
2.4.1 For definition of a seeming density and strength at compression control samples in the form of a cube with the size of an edge (100 ± 3) use mm, for temperature of the beginning of a softening - the sample in the form of the cylinder in height (50 ± 1) mm and diameter (36 ± 1) mm.
Control samples produce in accordance with GOST 10180 of a mix after shut its water in accordance with GOST 23732 by formation in the demountable metal form in accordance with GOST 22685 onvibrating table. Samples maintain in the form of not less than 12 hours, then the form open, samples establish on an equal surface and keep in the conditions which are not supposing drying of a surface of samples. Hardening of samples occurs within 3 day in to temperature of air 5-25 ó. Then samples dry up at temperature (100 ± 10) ó up to constant weight, and if necessary subject to heat treatment at temperature (800 ± 20) ó within 4 hours. Speed of rise of temperature at drying - no more than 50 C/hour, at heat treatment - no more than 200 C/hour.
Wrought samples test after cooling up to a room temperature
2.4.2 Quantity of samples and periodicity of tests are resulted in table 4.
Table 4
| Name of parameter |
Quantity of the samples who are a subject tests, pieces |
Periodicity of carrying out of tests |
Seeming density |
3 |
From each set |
Strength at compression: |
|
|
in 3 day after formation |
3 |
From each set |
after heat treatment |
3 |
From each set |
Mass fraction Al2O3,CaO |
1 (average test) |
Under the agreement of parties |
Temperature of the beginning of a softening |
1 |
Under the agreement of parties |
Note - Average test select from all samples, subjection to test for strength at compression |
2.5 Set should be accompanied by the quality certificate containing:
- name of manufacturer;
- mark of mix;
- date of manufacturing;
- results of acceptance tests;
- designation of the these specifications.
2.6 At reception of unsatisfactory results of tests even on one of parameters, on it spend re-testing on the double quantity of the samples prepared from the same sample. Results of re-testing extend on all set and are final. At unsatisfactory results of re-testing a set reject.
3 Quality monitoring
3.1 Mass fraction Al2O3, CaO determine in accordance with GOST 2642.4, GOST 2642.7, GOST 2642.0. Application of other methods providing demanded accuracy of the analysis is supposed.
3.2 Seeming density define on samples on 2.4.1. The sample weigh on weights under the normative documentation with a limit of an admissible error ± 0,2 the Linear sizes of the sample of the cubic form measure, roughly, in the middle of each side by a metal ruler in accordance with GOST 427 or sliding calliper in accordance with GOST 166. For result of measurement of length of an edge accept average arithmetic value from six measurements.
Seeming density ρs, g/sm3, count under the formula:
where m -weight of the sample, g;
V - settlement volume of the sample, sm3.
3.3 Strength at compression determine in accordance with GOST 4071.2 on samples on 2.4.1.
3.4 Temperature of the beginning of a softening determine in accordance with GOST 4070 on samples on 2.4.1.
3.5 Marks, packing and completeness of mixes check visually.
4 Transportation and storage
4.1 Transportation and storage in accordance with GOST 24717 with addition on 4.1.1
4.1.1 Mixes keep in the conditions excluding humidifying and damage of packing.
5 Manufacturer's guarantees
5.1 Mixes should be accepted by checking department.
5.2 Manufacturer guarantees conformity of mixes to requirements of the true specifications at observance by the consumer of conditions of transportation and the storage, established by the true specifications.
5.3 Warranty period of storage of mixes is established by the manufacturer. After the expiration of a warranty period of storage of a mix can be used to destination after preliminary check of their quality on conformity to requirements of the true specifications.
Appendix A
(Help)
Terms with meeting definitions
á.1 The Terms used in the true specifications, are resulted in table á.1
ôable á.1
| Terms |
Definitions |
Mix concrete normal |
Mix with the common contents oxide calcium more than 5,0 % |
Mix concrete with the lowered contents of cement |
Mix with the common contents oxide calcium within the limits of 2,5-5,0 % |
Mix concrete lowcement |
Mix with the common contents oxide calcium no more than 2,5 % |
Appendix B
(Help)
The list of normative documents on which there are links in the text of specifications
GOST 166-89 |
Pair of trammelses. Specifications |
GOST 427-75 |
Rulers measuring metal. Specifications |
GOST 2642.0-86 |
Refractories and fire-resistant raw material. The common requirements to methods of the analysis |
GOST 2642.4-97 |
Refractories and fire-resistant raw material. Methods of definition oxide aluminium |
GOST 2642.7-97 |
Refractories and fire-resistant raw material. Methods of definition oxide calcium |
GOST 4070-83 |
Refractories. A method of definition of temperature of deformation under loading |
GOST 4071.1-94
(ISO 10059-1-92) |
Products fire-resistant with the common porosity less than 45 %. A method of definition of strength at compression at a room temperature |
GOST 10180-90 |
Concrete. Methods of definition of durability on control samples |
GOST 22685-89 |
Forms for manufacturing control samples of concrete. Specifications |
GOST 23732-79 |
Water for concrete and solutions. Specifications |
GOST 24717-94 |
Refractories and raw material fire-resistant. Marks, packing, storage and transportation |
Record of changes
| Change |
Number of sheets (pages) |
In total sheets (pages) in the document |
Number of the document |
Signature |
Date |
| changed |
replaced |
new |
cancelled |
1 |
- |
1-12 |
- |
- |
14 |
2-2004 |
|
|
2 |
2,6 |
- |
- |
- |
2 |
3-2006 |
|
|
Back
