Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a preparation method of high-strength self-compacting concrete, which comprises the following steps: activating recycled aggregate, mixing, stirring, shearing, strengthening theactivated recycled aggregate and a proper amount of prefabricated liquid, blending the reinforced recycled aggregate with mineral powder, coal gangue and a dispersing agent MF to obtain a mixture, then adding a proper amount of waste plastic particles and fiber filler, stirring and mixing to obtain a mixture, blending the mixture with cement, natural aggregate and a polycarboxylate superplasticizer, adding a proper amount of mixing water, and uniformly stirring and mixing to obtain the concrete. The recycled aggregate is finely optimized and modified through reasonable process optimization, the formula proportion is reasonably optimized, the prepared concrete has excellent performance and slump loss resistance, the workability is remarkably improved, and the 28d compressive strength can reach 70 MPa or above.
本发明提出了一种高强自密实混凝土的制备方法，包括如下步骤，将再生骨料进行活化处理；活化处理的再生骨料与适量预制液混合搅拌剪切，强化处理；强化处理后的再生骨料与矿粉、煤矸石、分散剂MF共混，得混合料，然后再加入适量废弃塑料颗粒和纤维填料，搅拌混合得混合物；将混合物与水泥、天然骨料、聚羧酸高效减水剂共混，并添加适量拌合水，搅拌混匀即得；本申请通过合理工艺优化，对再生骨料进行细致优化改性，并合理优化配方比例，制备的混凝土具有优异的性能，保坍性、和易性显著的改善，28d抗压强度可达70MPa以上。
The invention provides a preparation method of high-strength self-compacting concrete, which comprises the following steps: activating recycled aggregate, mixing, stirring, shearing, strengthening theactivated recycled aggregate and a proper amount of prefabricated liquid, blending the reinforced recycled aggregate with mineral powder, coal gangue and a dispersing agent MF to obtain a mixture, then adding a proper amount of waste plastic particles and fiber filler, stirring and mixing to obtain a mixture, blending the mixture with cement, natural aggregate and a polycarboxylate superplasticizer, adding a proper amount of mixing water, and uniformly stirring and mixing to obtain the concrete. The recycled aggregate is finely optimized and modified through reasonable process optimization, the formula proportion is reasonably optimized, the prepared concrete has excellent performance and slump loss resistance, the workability is remarkably improved, and the 28d compressive strength can reach 70 MPa or above.
本发明提出了一种高强自密实混凝土的制备方法，包括如下步骤，将再生骨料进行活化处理；活化处理的再生骨料与适量预制液混合搅拌剪切，强化处理；强化处理后的再生骨料与矿粉、煤矸石、分散剂MF共混，得混合料，然后再加入适量废弃塑料颗粒和纤维填料，搅拌混合得混合物；将混合物与水泥、天然骨料、聚羧酸高效减水剂共混，并添加适量拌合水，搅拌混匀即得；本申请通过合理工艺优化，对再生骨料进行细致优化改性，并合理优化配方比例，制备的混凝土具有优异的性能，保坍性、和易性显著的改善，28d抗压强度可达70MPa以上。
Preparation method of high-strength self-compacting concrete
| Europäisches Patentamt | 2021
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High-strength self-compacting concrete
| British Library Online Contents | 2010
High-strength self-compacting concrete and preparation method thereof
| Europäisches Patentamt | 2021
High-strength self-compacting concrete and preparation method thereof
| Europäisches Patentamt | 2020