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A platform for research: civil engineering, architecture and urbanism
Recycled aggregate pervious concrete and preparation method thereof
The invention discloses recycled aggregate pervious concrete and a preparation method thereof, and belongs to the technical field of concrete. The pervious concrete is prepared from the following raw materials: cement, pretreated recycled aggregate, superfine slag powder, fly ash, toughened modified polypropylene fibers, redispersible latex powder, a silane coupling agent, hydroxypropyl methyl cellulose, a water reducing agent and water. According to the invention, the recycled aggregate is pretreated by chitosan, and then the toughening modified polypropylene fiber is modified by nano silicon dioxide and cetyltrimethylammonium chloride, so that the bonding force between the fiber and recycled aggregate particles is improved, and the strength of the material is greatly improved on the whole. The raw materials are scientifically proportioned, recycled aggregate is used for preparing the pervious concrete, recycling of waste resources is achieved, and the obtained recycled aggregate pervious concrete is high in compressive strength, high in water permeability, high in frost resistance and high in adaptability to the environment and has wide economic benefits and social benefits.
本发明公开一种再生骨料透水混凝土及其制备方法，属于混凝土技术领域。本发明透水混凝土包括水泥、预处理再生骨料、矿渣微粉、粉煤灰、增韧改性聚丙烯纤维、可再分散性乳胶粉、硅烷偶联剂、羟丙基甲基纤维素、减水剂以及水为原料制备而成。本发明先进行壳聚糖预处理再生骨料，其次，将增韧改性聚丙烯纤维，使用纳米二氧化硅和十六烷基三甲基氯化铵进行改性提升纤维和再生骨料颗粒间的胶结力，整体上大幅提升材料强度。本发明原料配比科学，使用再生骨料制备透水混凝土，实现废弃资源的循环再利用，并且所得再生骨料透水混凝土的抗压强度高，透水性能好，抗冻性能好，对环境适应能力强，具有广泛的经济效益和社会效益。
Recycled aggregate pervious concrete and preparation method thereof
The invention discloses recycled aggregate pervious concrete and a preparation method thereof, and belongs to the technical field of concrete. The pervious concrete is prepared from the following raw materials: cement, pretreated recycled aggregate, superfine slag powder, fly ash, toughened modified polypropylene fibers, redispersible latex powder, a silane coupling agent, hydroxypropyl methyl cellulose, a water reducing agent and water. According to the invention, the recycled aggregate is pretreated by chitosan, and then the toughening modified polypropylene fiber is modified by nano silicon dioxide and cetyltrimethylammonium chloride, so that the bonding force between the fiber and recycled aggregate particles is improved, and the strength of the material is greatly improved on the whole. The raw materials are scientifically proportioned, recycled aggregate is used for preparing the pervious concrete, recycling of waste resources is achieved, and the obtained recycled aggregate pervious concrete is high in compressive strength, high in water permeability, high in frost resistance and high in adaptability to the environment and has wide economic benefits and social benefits.
本发明公开一种再生骨料透水混凝土及其制备方法，属于混凝土技术领域。本发明透水混凝土包括水泥、预处理再生骨料、矿渣微粉、粉煤灰、增韧改性聚丙烯纤维、可再分散性乳胶粉、硅烷偶联剂、羟丙基甲基纤维素、减水剂以及水为原料制备而成。本发明先进行壳聚糖预处理再生骨料，其次，将增韧改性聚丙烯纤维，使用纳米二氧化硅和十六烷基三甲基氯化铵进行改性提升纤维和再生骨料颗粒间的胶结力，整体上大幅提升材料强度。本发明原料配比科学，使用再生骨料制备透水混凝土，实现废弃资源的循环再利用，并且所得再生骨料透水混凝土的抗压强度高，透水性能好，抗冻性能好，对环境适应能力强，具有广泛的经济效益和社会效益。
Recycled aggregate pervious concrete and preparation method thereof
一种再生骨料透水混凝土及其制备方法
KUANG LIJUN (author) / JING FULEI (author)
2021-10-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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