Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing polyphenyl granule concrete by utilizing carbonized recycled fine aggregate and uniformity testing method
The invention discloses a method for preparing polyphenyl granule concrete by utilizing carbonized recycled fine aggregate, which comprises the following steps: firstly, crushing waste concrete blocks to obtain recycled fine aggregate; then putting the recycled fine aggregate into a carbonization furnace, and vacuumizing to-0.1 MPa; cO2 is introduced into the carbonization furnace until the pressure intensity is 0.1-0.4 MPa, carbonization is performed for 12-48 h, and carbonized fine aggregate is obtained; and finally, uniformly mixing the cement, the river sand, the carbonized fine aggregate and the EPS particles according to a mass ratio of 600: 240-360: 120-240: 7.5, adding water according to a water-cement ratio of 0.46, and uniformly mixing. The method has the remarkable effects that the performance of the recycled aggregate is improved by performing carbonization pretreatment on the recycled fine aggregate prepared from the waste concrete, a reference basis is provided for subsequent engineering application of the recycled fine aggregate subjected to carbonization pretreatment, a large amount of waste concrete and polystyrene resources can be effectively recycled, natural gravel resources are saved, and the economic benefit is increased. Environment protection is facilitated, building solid waste is reasonably utilized and subjected to carbon sequestration, and the new direction of green, low-carbon and energy-saving building development is met.
本发明公开了一种利用碳化再生细骨料配制聚苯颗粒混凝土的方法，首先将废弃混凝土块破碎，得到再生细骨料；再将所述再生细骨料投入碳化炉内，抽真空至‑0.1MPa；再通入CO2至碳化炉内压强为0.1‑0.4MPa，碳化12‑48h，得碳化细骨料；最后以600：240‑360：120‑240：7.5的质量比将水泥、河砂、碳化细骨料、EPS颗粒混合均匀，再按照0.46的水灰比加入水，混合均匀。本发明的显著效果是，通过对废弃混凝土制备的再生细骨料进行碳化预处理来改善再生骨料的性能，为后续碳化预处理再生细骨料的工程应用提供参考依据，能有效回收利用大量的废弃混凝土和聚苯乙烯资源，节约自然砂石资源，有利于环境保护，合理利用建筑固废并进行碳封存，符合绿色、低碳、节能建筑发展的新方向。
Method for preparing polyphenyl granule concrete by utilizing carbonized recycled fine aggregate and uniformity testing method
The invention discloses a method for preparing polyphenyl granule concrete by utilizing carbonized recycled fine aggregate, which comprises the following steps: firstly, crushing waste concrete blocks to obtain recycled fine aggregate; then putting the recycled fine aggregate into a carbonization furnace, and vacuumizing to-0.1 MPa; cO2 is introduced into the carbonization furnace until the pressure intensity is 0.1-0.4 MPa, carbonization is performed for 12-48 h, and carbonized fine aggregate is obtained; and finally, uniformly mixing the cement, the river sand, the carbonized fine aggregate and the EPS particles according to a mass ratio of 600: 240-360: 120-240: 7.5, adding water according to a water-cement ratio of 0.46, and uniformly mixing. The method has the remarkable effects that the performance of the recycled aggregate is improved by performing carbonization pretreatment on the recycled fine aggregate prepared from the waste concrete, a reference basis is provided for subsequent engineering application of the recycled fine aggregate subjected to carbonization pretreatment, a large amount of waste concrete and polystyrene resources can be effectively recycled, natural gravel resources are saved, and the economic benefit is increased. Environment protection is facilitated, building solid waste is reasonably utilized and subjected to carbon sequestration, and the new direction of green, low-carbon and energy-saving building development is met.
本发明公开了一种利用碳化再生细骨料配制聚苯颗粒混凝土的方法，首先将废弃混凝土块破碎，得到再生细骨料；再将所述再生细骨料投入碳化炉内，抽真空至‑0.1MPa；再通入CO2至碳化炉内压强为0.1‑0.4MPa，碳化12‑48h，得碳化细骨料；最后以600：240‑360：120‑240：7.5的质量比将水泥、河砂、碳化细骨料、EPS颗粒混合均匀，再按照0.46的水灰比加入水，混合均匀。本发明的显著效果是，通过对废弃混凝土制备的再生细骨料进行碳化预处理来改善再生骨料的性能，为后续碳化预处理再生细骨料的工程应用提供参考依据，能有效回收利用大量的废弃混凝土和聚苯乙烯资源，节约自然砂石资源，有利于环境保护，合理利用建筑固废并进行碳封存，符合绿色、低碳、节能建筑发展的新方向。
Method for preparing polyphenyl granule concrete by utilizing carbonized recycled fine aggregate and uniformity testing method
利用碳化再生细骨料配制聚苯颗粒混凝土的方法以及均匀性测试方法
SU XIN (Autor:in) / FENG CHUNLAN (Autor:in) / YOU YARAN (Autor:in) / FENG RENJIANG (Autor:in) / OUYANG YUHUI (Autor:in) / BU CHANGMING (Autor:in) / ZHANG MINGTAO (Autor:in) / SUN YI (Autor:in) / SHI YANGXI (Autor:in) / ZHANG XUETAO (Autor:in)
10.10.2023
Patent
Elektronische Ressource
Chinesisch
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