Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultra-high performance concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete comprises the following components in parts by weight: 45-55 parts of Portland cement, 12-18 parts of silica fume, 12-18 parts of fine aggregate, 0.5-2 parts of a water reducing agent, 10-15 parts of water and 2-6 parts of reinforced fibers, wherein the fine aggregate is quartz sand with the particle size distribution of 0.2-2mm; the preparation method comprises the following steps: mixing and stirring the Portland cement, the silica fume and the fine aggregate, adding the water reducing agent and the water during stirring to obtain a concrete mixture, adding the reinforced fibers into the concrete mixture, and uniformly stirring; and pouring the concrete mixture into a mold, standing for 24 hours, carrying out steam curing on the concrete at the temperature of 40-50 DEG C and the humidity of 90-100% for 30-40 hours, demolding after the steam curing is completed, and carrying out natural curing for 10-15 days. The ultra-high performance concrete provided by the invention solves the problem of poor fluidity of ultra-high strength concrete.
本申请涉及混凝土领域，具体公开了一种超高性能混凝土及其制备方法。超高性能混凝土组分按重量计包括硅酸盐水泥45‑55份、硅灰12‑18份、细骨料12‑18份、减水剂0.5‑2份、水10‑15份和增强纤维2‑6份，所述细骨料选用粒径分布在0.2‑2mm之间的石英砂；其制备方法为：将硅酸盐水泥、硅灰、细骨料混合并搅拌，在搅拌中加入减水剂和水，得到混凝土拌合物，向混凝土拌合物中加入增强纤维并搅拌均匀；将混凝土拌合物浇筑在模具中，静置24h后将混凝土在温度40‑50℃、湿度90‑100%下蒸汽养护30‑40h，完成后脱模，进行自然养护10‑15天。本申请的超高性能混凝土解决超高强度混凝土流动性差的问题。
Ultra-high performance concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete comprises the following components in parts by weight: 45-55 parts of Portland cement, 12-18 parts of silica fume, 12-18 parts of fine aggregate, 0.5-2 parts of a water reducing agent, 10-15 parts of water and 2-6 parts of reinforced fibers, wherein the fine aggregate is quartz sand with the particle size distribution of 0.2-2mm; the preparation method comprises the following steps: mixing and stirring the Portland cement, the silica fume and the fine aggregate, adding the water reducing agent and the water during stirring to obtain a concrete mixture, adding the reinforced fibers into the concrete mixture, and uniformly stirring; and pouring the concrete mixture into a mold, standing for 24 hours, carrying out steam curing on the concrete at the temperature of 40-50 DEG C and the humidity of 90-100% for 30-40 hours, demolding after the steam curing is completed, and carrying out natural curing for 10-15 days. The ultra-high performance concrete provided by the invention solves the problem of poor fluidity of ultra-high strength concrete.
本申请涉及混凝土领域，具体公开了一种超高性能混凝土及其制备方法。超高性能混凝土组分按重量计包括硅酸盐水泥45‑55份、硅灰12‑18份、细骨料12‑18份、减水剂0.5‑2份、水10‑15份和增强纤维2‑6份，所述细骨料选用粒径分布在0.2‑2mm之间的石英砂；其制备方法为：将硅酸盐水泥、硅灰、细骨料混合并搅拌，在搅拌中加入减水剂和水，得到混凝土拌合物，向混凝土拌合物中加入增强纤维并搅拌均匀；将混凝土拌合物浇筑在模具中，静置24h后将混凝土在温度40‑50℃、湿度90‑100%下蒸汽养护30‑40h，完成后脱模，进行自然养护10‑15天。本申请的超高性能混凝土解决超高强度混凝土流动性差的问题。
Ultra-high performance concrete and preparation method thereof
一种超高性能混凝土及其制备方法
LANG YANJU (Autor:in) / GAO SHAN (Autor:in) / ZHAO FENGHUA (Autor:in) / ZHAO BO (Autor:in) / DU XIAODONG (Autor:in) / SUN SICHAO (Autor:in) / ZHANG KAI (Autor:in) / SONG WEIFENG (Autor:in) / LI LONG (Autor:in) / MA BAOZHEN (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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