SU374517A1 - METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE - Google Patents
METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETEInfo
- Publication number
- SU374517A1 SU374517A1 SU1689841A SU1689841A SU374517A1 SU 374517 A1 SU374517 A1 SU 374517A1 SU 1689841 A SU1689841 A SU 1689841A SU 1689841 A SU1689841 A SU 1689841A SU 374517 A1 SU374517 A1 SU 374517A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- strength
- aggregate
- determining
- concrete
- light concrete
- Prior art date
Links
Description
1one
Изобретение относитс к определению прочности заполнител дл бетонов и предназначено дл применени на строительных предпри ти х .The invention relates to the determination of the strength of aggregate for concrete and is intended for use in construction enterprises.
Известен способ определени прочности крупного заполнител дл легкого бетопа, включающий сдавливание заполнител в цилиндре .There is a known method for determining the strength of a large aggregate for a lightweight concrete, which includes squeezing the aggregate in the cylinder.
Цель предлагаемого изобретени - учет упрочнени заполнител в бетоне.The purpose of the present invention is to take into account the strengthening of the aggregate in concrete.
Это достигаетс тем, что заполнитель предварительно пропитывают цементной суспензией и подвергают термовлажностной обработке по режиму дл бетона на его основе.This is achieved by pre-impregnating the aggregate with a cement slurry and subjecting it to heat and moisture treatment according to a regime for concrete based on it.
Испытанию подвергаетс заполнитель, обработанный следующим образом. Высушенна проба заполнител данной фракции погружаетс в цементную суспензию с В/Ц -0,5-1,0. Во врем погружени смесь 4 раза перемешивают; одновременно с погружением, затем через 5,15 и 25 мин. Через 30 мин заполнитель отдел ют от излишков цементной суспензии, протира через сито с отверсти ми, соответствующими минимальным размерам данной фракции. Отделенный заполнитель высыпают тонким слоем на противень и подвергают термовлажностной обработке по режиму дл бетона на его основе (естественному твердению , пропариванию или автоклавированию). После этого заполнитель просушиваетс до посто нного веса в сушильном шкафу и вторично просеиваетс через сито, а сцементированные зерна отдел ютс друг от друга.The test is subjected to a filler treated as follows. The dried sample of the aggregate of this fraction is immersed in a cement slurry with a B / C of -0.5-1.0. During immersion, the mixture is stirred 4 times; simultaneously with immersion, then after 5,15 and 25 min. After 30 minutes, the aggregate is separated from the excess cement slurry, rubbing through a sieve with holes corresponding to the minimum dimensions of this fraction. The separated aggregate is poured in a thin layer on a baking sheet and subjected to heat and moisture treatment according to the mode for concrete on its basis (natural hardening, steaming or autoclaving). After that, the aggregate is dried to a constant weight in the drying cabinet and sieved again through a sieve, and the cemented grains are separated from each other.
Дальнейшее испытание производитс сдавливанием в цилиндре (ГОСТ 9758-68).Further testing is performed by squeezing in the cylinder (GOST 9758-68).
Предмет изобретени Subject invention
Способ определени прочности крупного заполнител дл легкого бетона, включающий сдавливание заполнител в цилиндре, отличающийс тем, что, с целью учета упрочнени его в бетоне, заполнитель предварительно пропитывают цементной суспензией и подвергают термовлажностной обработке по режпму дл бетона на его основе.A method for determining the strength of a coarse aggregate for lightweight concrete, including squeezing the aggregate in a cylinder, characterized in that, in order to take into account its hardening in concrete, the aggregate is pre-impregnated with a cement slurry and subjected to a heat-moisture treatment according to concrete for it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1689841A SU374517A1 (en) | 1971-07-29 | 1971-07-29 | METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1689841A SU374517A1 (en) | 1971-07-29 | 1971-07-29 | METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE |
Publications (1)
Publication Number | Publication Date |
---|---|
SU374517A1 true SU374517A1 (en) | 1973-03-20 |
Family
ID=20485606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1689841A SU374517A1 (en) | 1971-07-29 | 1971-07-29 | METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU374517A1 (en) |
-
1971
- 1971-07-29 SU SU1689841A patent/SU374517A1/en active
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