Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete with high slump retaining performance and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to recycled concrete with high slump retaining performance and a preparation method of the recycled concrete. The recycled concrete comprises the following components in parts by weight: 400 to 500 parts of cement, 450 to 650 parts of sand, 650 to 800 parts of a natural aggregate, 200 to 300 parts of a recycled aggregate, 80 to 150 parts of fly ash, 50 to 100 parts of mineral powder, 150 to 250 parts of water and 2 to 6 parts of a slump-retaining polycarboxylate superplasticizer. According to the recycled concrete with the high slump retaining performance, natural aggregate and recycled aggregate are compounded, a proper amount of recycled aggregate is added, on the premise that the performance of the concrete is guaranteed, the problem of recycling of building waste is solved to a certain degree, in addition, slump loss of the concrete is reduced by adding the slump retaining type polycarboxylate superplasticizer, and the workability of the concrete is improved.
本申请属于混凝土技术领域，具体涉及一种具有高保坍性能的再生混凝土及其制备方法，该具有高保坍性能的再生混凝土，包括如下重量份的各组分：水泥400‑500份、砂子450‑650份、天然骨料650‑800份、再生骨料200‑300份、粉煤灰80‑150份、矿粉50‑100份、水150‑250份、保坍型聚羧酸减水剂2‑6份。本申请的具有高保坍性能的再生混凝土，采用天然骨料与再生骨料复配，添加适量的再生骨料，在保证混凝土性能的前提下，在一定程度上解决建筑废弃物的回收利用问题，另外，通过添加保坍型聚羧酸减水剂减少混凝土的坍落度损失，改善混凝土的工作性。
Recycled concrete with high slump retaining performance and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to recycled concrete with high slump retaining performance and a preparation method of the recycled concrete. The recycled concrete comprises the following components in parts by weight: 400 to 500 parts of cement, 450 to 650 parts of sand, 650 to 800 parts of a natural aggregate, 200 to 300 parts of a recycled aggregate, 80 to 150 parts of fly ash, 50 to 100 parts of mineral powder, 150 to 250 parts of water and 2 to 6 parts of a slump-retaining polycarboxylate superplasticizer. According to the recycled concrete with the high slump retaining performance, natural aggregate and recycled aggregate are compounded, a proper amount of recycled aggregate is added, on the premise that the performance of the concrete is guaranteed, the problem of recycling of building waste is solved to a certain degree, in addition, slump loss of the concrete is reduced by adding the slump retaining type polycarboxylate superplasticizer, and the workability of the concrete is improved.
本申请属于混凝土技术领域，具体涉及一种具有高保坍性能的再生混凝土及其制备方法，该具有高保坍性能的再生混凝土，包括如下重量份的各组分：水泥400‑500份、砂子450‑650份、天然骨料650‑800份、再生骨料200‑300份、粉煤灰80‑150份、矿粉50‑100份、水150‑250份、保坍型聚羧酸减水剂2‑6份。本申请的具有高保坍性能的再生混凝土，采用天然骨料与再生骨料复配，添加适量的再生骨料，在保证混凝土性能的前提下，在一定程度上解决建筑废弃物的回收利用问题，另外，通过添加保坍型聚羧酸减水剂减少混凝土的坍落度损失，改善混凝土的工作性。
Recycled concrete with high slump retaining performance and preparation method thereof
一种具有高保坍性能的再生混凝土及其制备方法
MO XIANFENG (Autor:in) / ZHAO JINGSONG (Autor:in) / ZHENG HANYI (Autor:in) / FENG XUEJIAO (Autor:in) / CHEN HEJIAN (Autor:in) / FENG GUOYONG (Autor:in)
14.01.2022
Patent
Elektronische Ressource
Chinesisch
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