Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrahigh-strength concrete and preparation method thereof
The invention discloses ultrahigh-strength concrete and a preparation method thereof. The ultrahigh-strength concrete comprises the following components: 760-785 kg/m < 3 > of cement, 60-95 kg/m < 3 > of fly ash, 40-65 kg/m < 3 > of slag powder, 100-160 kg/m < 3 > of silica fume, 15-21 kg/m < 3 > of calcined quartz nano powder, 1150-1240 kg/m < 3 > of quartz sand aggregate, 290-310 kg/m < 3 > of steel fibers, 31.5-37.0 kg/m < 3 > of a water reducing agent, 0.31-0.37 kg/m < 3 > of a defoaming agent and 145-150 kg/m < 3 > of water. By adding the calcined quartz nano powder, the concrete is more compact by filling pores which cannot be filled by a cementing material, and the nanoscale quartz powder has certain activity, can participate in a hydration reaction under certain conditions, and can be more tightly combined with other components in the concrete after being hydrated.
本申请公开一种超高强度混凝土及其制备方法，包括如下组分：水泥760～785kg/m3，粉煤灰60～95kg/m3，矿渣粉40～65kg/m3，硅灰100～160kg/m3，煅烧石英纳米粉15～21kg/m3，石英砂骨料1150‑1240kg/m3，钢纤维290～310kg/m3，减水剂31.5～37.0kg/m3，消泡剂0.31～0.37kg/m3，水145～150kg/m3。通过添加煅烧石英纳米粉起到两个作用，一是填充胶凝材料填充不到的孔隙，使混凝土更密实，二是纳米级的石英粉具有一定得活性，在一定条件下，可以参与水化反应，水化后可以与混凝土中的其他组分结合的更加紧密。
Ultrahigh-strength concrete and preparation method thereof
The invention discloses ultrahigh-strength concrete and a preparation method thereof. The ultrahigh-strength concrete comprises the following components: 760-785 kg/m < 3 > of cement, 60-95 kg/m < 3 > of fly ash, 40-65 kg/m < 3 > of slag powder, 100-160 kg/m < 3 > of silica fume, 15-21 kg/m < 3 > of calcined quartz nano powder, 1150-1240 kg/m < 3 > of quartz sand aggregate, 290-310 kg/m < 3 > of steel fibers, 31.5-37.0 kg/m < 3 > of a water reducing agent, 0.31-0.37 kg/m < 3 > of a defoaming agent and 145-150 kg/m < 3 > of water. By adding the calcined quartz nano powder, the concrete is more compact by filling pores which cannot be filled by a cementing material, and the nanoscale quartz powder has certain activity, can participate in a hydration reaction under certain conditions, and can be more tightly combined with other components in the concrete after being hydrated.
本申请公开一种超高强度混凝土及其制备方法，包括如下组分：水泥760～785kg/m3，粉煤灰60～95kg/m3，矿渣粉40～65kg/m3，硅灰100～160kg/m3，煅烧石英纳米粉15～21kg/m3，石英砂骨料1150‑1240kg/m3，钢纤维290～310kg/m3，减水剂31.5～37.0kg/m3，消泡剂0.31～0.37kg/m3，水145～150kg/m3。通过添加煅烧石英纳米粉起到两个作用，一是填充胶凝材料填充不到的孔隙，使混凝土更密实，二是纳米级的石英粉具有一定得活性，在一定条件下，可以参与水化反应，水化后可以与混凝土中的其他组分结合的更加紧密。
Ultrahigh-strength concrete and preparation method thereof
一种超高强度混凝土及其制备方法
ZHANG YONG (Autor:in) / LI YANZHONG (Autor:in) / WANG XINYU (Autor:in)
07.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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