A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Nano-silica regenerated micro-powder concrete and preparation method thereof
The invention discloses nano-silica regenerated micro-powder concrete and a preparation method thereof. The recycled micro-powder concrete is prepared from the following raw materials, by weight: 100parts of cement, 10-70 parts of recycled concrete micro-powder, 110-190 parts of sand, 270-460 parts of stone, 42-63 parts of water, 1.5-4 parts of nano silicon dioxide and 0.6-1 part of polycarboxylate superplasticizer; and the water cement ratio of the recycled micro-powder concrete is 1: (1.5-2.7). The recycled concrete micro-powder and the nano silicon dioxide both have a filling effect and volcanic ash activity, so that the performance of the recycled micro-powder concrete can be effectively improved; and the obtained concrete has excellent mechanical properties. According to the method for preparing the concrete from the recycled concrete micro powder, on the premise of meeting the use performance of the concrete, waste is utilized, building energy consumption is reduced, and limitednatural resources are saved.
本发明公开了一种纳米二氧化硅再生微粉混凝土及其制备方法，所述再生微粉混凝土由以下原料按重量份组成：水泥100份、再生混凝土微粉10～70份、砂110～190份、石子270～460份、水42～63份、纳米二氧化硅1.5～4份、聚羧酸减水剂0.6～1份，其中，所述再生微粉混凝土的水灰比为1:(1.5～2.7)。再生混凝土微粉和纳米二氧化硅都具有填充效应和火山灰活性，可以有效地改善再生微粉混凝土的性能，使得到的混凝土具有优异的力学性能。本发明提供的利用再生混凝土微粉制备混凝土的方法，在满足混凝土使用性能的前提下，进行废物利用，减少建筑能耗，节约有限的自然资源。
Nano-silica regenerated micro-powder concrete and preparation method thereof
The invention discloses nano-silica regenerated micro-powder concrete and a preparation method thereof. The recycled micro-powder concrete is prepared from the following raw materials, by weight: 100parts of cement, 10-70 parts of recycled concrete micro-powder, 110-190 parts of sand, 270-460 parts of stone, 42-63 parts of water, 1.5-4 parts of nano silicon dioxide and 0.6-1 part of polycarboxylate superplasticizer; and the water cement ratio of the recycled micro-powder concrete is 1: (1.5-2.7). The recycled concrete micro-powder and the nano silicon dioxide both have a filling effect and volcanic ash activity, so that the performance of the recycled micro-powder concrete can be effectively improved; and the obtained concrete has excellent mechanical properties. According to the method for preparing the concrete from the recycled concrete micro powder, on the premise of meeting the use performance of the concrete, waste is utilized, building energy consumption is reduced, and limitednatural resources are saved.
本发明公开了一种纳米二氧化硅再生微粉混凝土及其制备方法，所述再生微粉混凝土由以下原料按重量份组成：水泥100份、再生混凝土微粉10～70份、砂110～190份、石子270～460份、水42～63份、纳米二氧化硅1.5～4份、聚羧酸减水剂0.6～1份，其中，所述再生微粉混凝土的水灰比为1:(1.5～2.7)。再生混凝土微粉和纳米二氧化硅都具有填充效应和火山灰活性，可以有效地改善再生微粉混凝土的性能，使得到的混凝土具有优异的力学性能。本发明提供的利用再生混凝土微粉制备混凝土的方法，在满足混凝土使用性能的前提下，进行废物利用，减少建筑能耗，节约有限的自然资源。
Nano-silica regenerated micro-powder concrete and preparation method thereof
一种纳米二氧化硅再生微粉混凝土及其制备方法
LIU XIAOYAN (author) / LIU LI (author) / LI TIANYU (author) / LI SHIJIE (author) / LIU YANQI (author) / YU JINYAO (author) / JIE HANDUO (author) / JIANG BO (author) / JIANG KEWEI (author)
2020-08-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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