摘要
传统再生细骨料需水量大、强度低,较难利用,将废弃混凝土全部破碎成细骨料的全再生细骨料技术能有效提高再生细骨料性能。在前期研究基础上,进行了全再生细骨料对砂浆性能影响的研究。结果表明,在同样砂浆稠度的情况下,全再生细骨料砂浆的综合性能优于传统再生细骨料砂浆,与机制砂砂浆和河砂砂浆相近,可全取代机制砂或河砂用于制备砂浆;全再生细骨料具有较好的保水性能,用其配制砂浆时可较河砂和机制砂适当降低保水剂用量。
The tranditional recycled fine aggregates has large water demand, low strength, and difficult to use, all recycled fine aggregate technology that is brocken waste concrete into fine aggregatecan, improve the performance of recy- cled fine aggregate. Based on the previous research, the influence of all recycled fine aggregate on mortar performance is studied. The results show that under the condition of the same mortar consistency, the comprehensive perfornmnce of the all recycled fine aggregate mortar is superior to the traditional recycled fine aggregate mortar, which is similar with manufactured-sand mortar and river sand mortar, all recycled fine aggregate mortar can fully replace the manufactured-sand mortar or river sand to prepare mortar. The all recycled fine aggregate has good water retention performance, the dosage of aquasorb can be appropriatly decreased for preparing mortar by using all recycled fine aggregate, compared with river sand and manufatured sand.
出处
《混凝土与水泥制品》
2015年第12期94-98,共5页
China Concrete and Cement Products
基金
广东省公益研究与能力建设项目(2014B020216001)
关键词
全再生细骨料
传统再生细骨料
砂浆
性能
All recycled fine aggregates
Traditional recycled fine aggregates
Mortar
Performance
