Environment-friendly lightweight aggregate concrete and preparation method thereof: Fid-Bau Portal

Environment-friendly lightweight aggregate concrete and preparation method thereof

XU YONGZHI

The invention relates to the technical field of building materials, in particular to environment-friendly lightweight aggregate concrete and a preparation method thereof, and the environment-friendly lightweight aggregate concrete is prepared from the following raw materials in parts by weight: 300-450 parts of cement; 500 to 650 parts of light coarse aggregate; 680 to 800 parts of fine aggregate; 90 to 240 parts of an admixture; 5-20 parts of a wood chip activated carbon-thickening material; 60-85 parts of an air entraining agent; 8-12 parts of a water reducing agent; 100 to 160 parts of water; the wood chip activated carbon-thickening material is prepared from wood chip activated carbon and a thickening agent, the thickening agent is selected from polyacrylamide, and the wood chip activated carbon is prepared by taking biomass carbon obtained by thermal cracking of wood chips as a raw material and potassium hydroxide as an activating agent. The cement, the light coarse aggregate, the fine aggregate, the admixture, the sawdust activated carbon-thickening material, the air entraining agent, the water reducing agent and the water are used as raw materials, the problem of floating of the light aggregate is effectively solved, and the environment-friendly light aggregate concrete with good homogeneity and mechanical property is provided.

本发明涉及建筑材料技术领域，具体来说是一种环保轻骨料混凝土及其制备方法，由如下重量份数的原料制成：水泥300‑450份；轻粗骨料500‑650份；细骨料680‑800份；掺合料90‑240份；木屑活性炭‑增稠料5‑20份；引气剂60‑85份；减水剂8‑12份；水100‑160份；木屑活性炭‑增稠料由木屑活性炭和增稠剂制成，增稠剂选自聚丙烯酰胺，木屑活性炭以木屑热裂解的生物质碳为原料，氢氧化钾为活化剂制得。本发明以水泥、轻粗骨料、细骨料、掺合料、木屑活性炭‑增稠料、引气剂、减水剂和水为原料，有效解决了轻集料上浮的问题，提供了一种均质性和力学性能好的环保轻骨料混凝土。

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