Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Post-pouring concrete and preparation method thereof
The invention discloses post-pouring concrete and a preparation method thereof, belongs to the field of building concrete, and aims at solving the problems that post-pouring concrete is long in hardening period, slow in strength developing speed and easy to contract and crack. The post-pouring concrete comprises 12%-17% of ordinary portland cement, 1.7%-2.4% of sulphoaluminate cement, 0.9%-1.2% of aluminate cement, 1.7%-2.4% of ground slag powder, 0.06%-0.07% of strength excitation agent, 1.0%-1.5% of anhydrate gypsum, 0.2%-0.4% of sodium sulfate, 0.2%-0.3% of a polycarboxylic acid water reducer, 17%-24% of medium sand, 48%-51% of 5-20 mm broken stone, and 9%-10% of water. The post-pouring concrete possesses the advantages of short initial setting time, fast strength developing speed, small contraction and uneasiness to crack.
Post-pouring concrete and preparation method thereof
The invention discloses post-pouring concrete and a preparation method thereof, belongs to the field of building concrete, and aims at solving the problems that post-pouring concrete is long in hardening period, slow in strength developing speed and easy to contract and crack. The post-pouring concrete comprises 12%-17% of ordinary portland cement, 1.7%-2.4% of sulphoaluminate cement, 0.9%-1.2% of aluminate cement, 1.7%-2.4% of ground slag powder, 0.06%-0.07% of strength excitation agent, 1.0%-1.5% of anhydrate gypsum, 0.2%-0.4% of sodium sulfate, 0.2%-0.3% of a polycarboxylic acid water reducer, 17%-24% of medium sand, 48%-51% of 5-20 mm broken stone, and 9%-10% of water. The post-pouring concrete possesses the advantages of short initial setting time, fast strength developing speed, small contraction and uneasiness to crack.
Post-pouring concrete and preparation method thereof
YANG XIANG (Autor:in) / CHEN JING (Autor:in) / YANG CHANGJIANG (Autor:in) / SHI CONGLI (Autor:in) / JIANG ZHEN (Autor:in) / SONG KAIWEI (Autor:in)
25.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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