SU374517A1 - METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE - Google Patents

METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE

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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
Application number
SU1689841A
Other languages
Russian (ru)
Inventor
Е. В. Фридман М. П. Элинзон витель Т. Б. Арбузова
Original Assignee
Государственный всесоюзный научно исследовательский институт строительных материалов , конструкций
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Государственный всесоюзный научно исследовательский институт строительных материалов , конструкций filed Critical Государственный всесоюзный научно исследовательский институт строительных материалов , конструкций
Priority to SU1689841A priority Critical patent/SU374517A1/en
Application granted granted Critical
Publication of SU374517A1 publication Critical patent/SU374517A1/en

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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.

SU1689841A 1971-07-29 1971-07-29 METHOD FOR DETERMINING THE STRENGTH OF LARGE FILLER FOR LIGHT CONCRETE SU374517A1 (en)

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)

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