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Composite admixture for high strength concrete and preparation method thereof
Belonging to the technical field of building material concrete, the invention in particular relates to a composite admixture for high strength concrete and a preparation method thereof. The composite admixture for high strength concrete is formed by mixing of the following components by weight percentage: 1%-3% of cement clinker, 20%-30% of silica fume, 20%-30% of levigated desulphurization ash, 20%-30% of superfine fly ash, 1%-2% of a plasticizer, 1%-2% of a strength exciting agent, and the balance levigated slag powder. Specifically, the strength exciting agent is formed by mixing of an additive XC, triethanolamine, triisopropanolamine, redispersible latex powder, nano-silica and xanthan gum in a ratio of 1:1.5-3:1.5-3:0.015-0.04:0.8-1.2:0.4-0.6, and the plasticizer is powdery polycarboxylate superplasticizer. The composite admixture adopting the technical scheme of the invention can improve the concrete strength and durability, and is easy to prepare.
Composite admixture for high strength concrete and preparation method thereof
Belonging to the technical field of building material concrete, the invention in particular relates to a composite admixture for high strength concrete and a preparation method thereof. The composite admixture for high strength concrete is formed by mixing of the following components by weight percentage: 1%-3% of cement clinker, 20%-30% of silica fume, 20%-30% of levigated desulphurization ash, 20%-30% of superfine fly ash, 1%-2% of a plasticizer, 1%-2% of a strength exciting agent, and the balance levigated slag powder. Specifically, the strength exciting agent is formed by mixing of an additive XC, triethanolamine, triisopropanolamine, redispersible latex powder, nano-silica and xanthan gum in a ratio of 1:1.5-3:1.5-3:0.015-0.04:0.8-1.2:0.4-0.6, and the plasticizer is powdery polycarboxylate superplasticizer. The composite admixture adopting the technical scheme of the invention can improve the concrete strength and durability, and is easy to prepare.
Composite admixture for high strength concrete and preparation method thereof
SHI CONGLI (author) / SONG KAIWEI (author) / CHEN XICAI (author) / LI ZHIKUN (author) / YANG ZAIFU (author) / CHEN JING (author) / XIN ZHUANHONG (author) / DU ZENGYAN (author) / WANG CHUNLAN (author)
2015-09-16
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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