SU243473A1 - METHOD FOR OBTAINING EXTENDED CEMENT - Google Patents
METHOD FOR OBTAINING EXTENDED CEMENTInfo
- Publication number
- SU243473A1 SU243473A1 SU1203405A SU1203405A SU243473A1 SU 243473 A1 SU243473 A1 SU 243473A1 SU 1203405 A SU1203405 A SU 1203405A SU 1203405 A SU1203405 A SU 1203405A SU 243473 A1 SU243473 A1 SU 243473A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cement
- obtaining extended
- extended cement
- gypsum
- alumina
- Prior art date
Links
- 239000004568 cement Substances 0.000 title description 10
- 238000000034 method Methods 0.000 title description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 229910020169 SiOa Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Description
Известен способ получений расшир ющегос цемента путем совместного или раздельного с последующим смешением помола глиноземистого в жущего и гипса.There is a method of obtaining expandable cement by joint or separate, followed by mixing the grinding of alumina into binder and gypsum.
Недостатком такого цемента вл ютс короткие (по сравнению с портландцементом) сроки схватывани , затрудн ющие щирокое ею использование.The disadvantage of such cement is the short setting time (compared to Portland cement), which hinders its wide use.
Целью изобретени вл етс удлинение сроков схватывани цемента и повышение его прочности.The aim of the invention is to lengthen the setting time of cement and increase its strength.
Достигаетс это тем, что глиноземистое в жущее , содержащее (в вес. %):This is achieved by the fact that alumina burning, containing (in wt.%):
АЬОз70-76ALO70-76
СаО22-28CaO22-28
SiOs0,01 - 1SiOs0.01 - 1
прочих соединений 0,01-1,other compounds 0.01-1,
смешивают с гипсом в соотношении от 6,5:3,5 до 7,5:2,5 по весу.mixed with gypsum in a ratio of 6.5: 3.5 to 7.5: 2.5 by weight.
Способ заключаетс в следующем.The method is as follows.
После раздельного или совместного помола глиноземистое в лсущее, содержащее (в вес. %) АЬОз 70-76, СаО 22-28, SiOa 0,01-1, прочих соединений 0,01-1, смешивают с гипсом в соотношении от 6,5:3,5 до 7,5:2,5 по весу.After separate or joint grinding, alumina in total, containing (in wt.%) ALOZ 70-76, CaO 22-28, SiOa 0.01-1, other compounds 0.01-1, is mixed with gypsum in a ratio of 6.5. : 3.5 to 7.5: 2.5 by weight.
медленЦо схватывающегос мйЦерала СабХ Х2А120з.Slowly grasping myceral SabH X2A120z.
Растворы, изготоЁленнЫе на предлагаемом цементе, имеют высокую прочность через 72 час после затворени и более поздние сроки твердени , чем аналогичные материалы на известном расшир ющемс цементе.The solutions prepared on the proposed cement have a high strength 72 hours after mixing and a later curing time than similar materials on the known expanding cement.
Преимуществом предлагаемого цемента вл етс возможность централизованного изготовлени растворов и бетонов и использование бетононасосов дл транспортировки к месту укладки, а также сокращение расхода цемента в растворе и бетоне в св зи с его повышенной прочностью.The advantage of the proposed cement is the possibility of centralized production of mortars and concretes and the use of concrete pumps for transportation to the place of laying, as well as a reduction in the consumption of cement in mortar and concrete due to its increased strength.
Предмет изобретени Subject invention
Способ ползчени расшир ющегос цемента путем помола с последующим смешением глиноземистого в жущего и гипса, отличающийс тем, что, с целью удлинени сроков схватывани и повышени прочности, глиноземистое в жущее , содерлсащее (в вес. %):The creeping method of expanding cement by grinding, followed by mixing the alumina cement and gypsum, characterized in that, in order to lengthen the setting time and increase the strength, the aluminous resin melts (by weight%):
АЬОз70-76ALO70-76
СаО22-28CaO22-28
SiOa0,01-1SiOa0.01-1
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU243473A1 true SU243473A1 (en) |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50111110A (en) * | 1974-02-01 | 1975-09-01 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50111110A (en) * | 1974-02-01 | 1975-09-01 |
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