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A platform for research: civil engineering, architecture and urbanism
Ultralow-color-difference concrete based on heavy calcium powder and preparation method of ultralow-color-difference concrete
The invention discloses ultra-low color difference concrete based on heavy calcium carbonate powder. The ultra-low color difference concrete comprises the following components in percentage by weight: 200-450 kg/m < 3 > of cement, 0-150 kg/m < 3 > of slag powder, 1000-1200 kg/m < 3 > of gravel, 700-800 kg/m < 3 > of sand, 150-180 kg/m < 3 > of liquid water, 0-80 kg/m < 3 > of solid ice, 70-150 kg/m < 3 > of heavy calcium carbonate powder and 0.8-5.0 kg/m < 3 > of a special additive. The invention further discloses a preparation method of the ultra-low color difference concrete based on the heavy calcium powder. Through reasonable proportion design, the poured concrete is uniform in appearance color, free of bubbles and very good in facing effect, the effect of bare concrete can be achieved without modification, the facing effect of a bridge structure is met, and high-added-value utilization is provided for heavy calcium carbonate powder and granulated blast furnace slag powder solid waste; the cement consumption is reduced, so that carbon emission is reduced, and low-carbon concrete is prepared; in a three-phase system of heavy calcium powder, granulated blast-furnace slag powder and cement, the machine-made sand can be applied to bridge facing concrete with higher concrete appearance requirements, and the application range of the machine-made sand is further widened.
本发明公开了一种基于重钙粉的超低色差混凝土，其各组分及用量为：水泥200‑450kg/m3、矿渣粉0‑150kg/m3、碎石1000‑1200kg/m3、砂700‑800kg/m3、液态水150‑180kg/m3、固态冰0‑80kg/m3、重钙粉70‑150kg/m3、专用外加剂0.8‑5.0kg/m3。本发明还公开一种基于重钙粉的超低色差混凝土的制备方法。本发明经过合理的配比设计，使浇筑出的混凝土外观色泽均匀，无气泡，饰面效果非常好，不用修饰即可达到清水混凝土效，不仅满足了桥梁结构饰面效果，而且还对重钙粉、粒化高炉矿渣粉固体废物提供了一种高附加值利用；降低水泥用量进而减少碳排放，制备低碳混凝土；在重钙粉、粒化高炉矿渣粉、水泥三相体系中能够把机制砂应用于混凝土外观要较高的桥梁饰面混凝土中，进一步拓宽了机制砂的应用范围。
Ultralow-color-difference concrete based on heavy calcium powder and preparation method of ultralow-color-difference concrete
The invention discloses ultra-low color difference concrete based on heavy calcium carbonate powder. The ultra-low color difference concrete comprises the following components in percentage by weight: 200-450 kg/m < 3 > of cement, 0-150 kg/m < 3 > of slag powder, 1000-1200 kg/m < 3 > of gravel, 700-800 kg/m < 3 > of sand, 150-180 kg/m < 3 > of liquid water, 0-80 kg/m < 3 > of solid ice, 70-150 kg/m < 3 > of heavy calcium carbonate powder and 0.8-5.0 kg/m < 3 > of a special additive. The invention further discloses a preparation method of the ultra-low color difference concrete based on the heavy calcium powder. Through reasonable proportion design, the poured concrete is uniform in appearance color, free of bubbles and very good in facing effect, the effect of bare concrete can be achieved without modification, the facing effect of a bridge structure is met, and high-added-value utilization is provided for heavy calcium carbonate powder and granulated blast furnace slag powder solid waste; the cement consumption is reduced, so that carbon emission is reduced, and low-carbon concrete is prepared; in a three-phase system of heavy calcium powder, granulated blast-furnace slag powder and cement, the machine-made sand can be applied to bridge facing concrete with higher concrete appearance requirements, and the application range of the machine-made sand is further widened.
本发明公开了一种基于重钙粉的超低色差混凝土，其各组分及用量为：水泥200‑450kg/m3、矿渣粉0‑150kg/m3、碎石1000‑1200kg/m3、砂700‑800kg/m3、液态水150‑180kg/m3、固态冰0‑80kg/m3、重钙粉70‑150kg/m3、专用外加剂0.8‑5.0kg/m3。本发明还公开一种基于重钙粉的超低色差混凝土的制备方法。本发明经过合理的配比设计，使浇筑出的混凝土外观色泽均匀，无气泡，饰面效果非常好，不用修饰即可达到清水混凝土效，不仅满足了桥梁结构饰面效果，而且还对重钙粉、粒化高炉矿渣粉固体废物提供了一种高附加值利用；降低水泥用量进而减少碳排放，制备低碳混凝土；在重钙粉、粒化高炉矿渣粉、水泥三相体系中能够把机制砂应用于混凝土外观要较高的桥梁饰面混凝土中，进一步拓宽了机制砂的应用范围。
Ultralow-color-difference concrete based on heavy calcium powder and preparation method of ultralow-color-difference concrete
一种基于重钙粉的超低色差混凝土及其制备方法
HE TAO (author) / WANG YIGE (author) / RONG GUOCHENG (author) / GUO GUANGYIN (author) / TAN LIXIN (author) / CAI YANBIAO (author) / LIU CHENGHONG (author) / DONG ZIQIAN (author)
2022-05-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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