Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of concrete, and particularly discloses green high-performance concrete as well as a preparation method and application thereof. The green high-performance concrete is prepared from pretreated recycled coarse aggregate and recycled fine aggregate, cement, a high-efficiency air-entraining water reducing agent, mineral powder and water. The preparation method comprises the following steps: premixing the recycled coarse aggregate, cement and the high-efficiency air-entraining water reducing agent, adding water, and uniformly stirring to obtain a pasty concrete mixture; uniformly mixing the input mineral powder with the pasty concrete mixture; and finally, adding the recycled fine aggregate until the recycled fine aggregate is uniformly mixed with the pasty concrete mixture. According to the green high-performance concrete, waste concrete and waste sintered bricks are recycled, resources are saved, and the green high-performance concrete is green and environmentally friendly. In addition, internal pores of the treated waste concrete are reduced, the hardness is improved, and the prepared concrete has high impermeability and compressive strength.
本申请涉及混凝土的技术领域，具体公开了一种绿色高性能混凝土及其制备方法及用途。一种绿色高性能混凝土包括：经过预处理的再生粗骨料和再生细骨料、水泥、高效引气减水剂、矿粉和水；其制备方法为：将再生粗骨料、水泥和高效引气减水剂进行干料预混，后加水搅拌均匀制得浆状混凝土拌合物；再将投入矿粉与浆状混凝土拌合物混合均匀；最后投入再生细骨料直至再生细骨料与浆状混凝土拌合物混合均匀。本申请的绿色高性能混凝土，将废弃混凝土和废弃烧结砖再利用，节约资源，绿色环保。并且经过处理后的废弃混凝土，内部的孔隙减少，硬度提高，制备的混凝土具有较高的抗渗强度和抗压强度。
The invention relates to the technical field of concrete, and particularly discloses green high-performance concrete as well as a preparation method and application thereof. The green high-performance concrete is prepared from pretreated recycled coarse aggregate and recycled fine aggregate, cement, a high-efficiency air-entraining water reducing agent, mineral powder and water. The preparation method comprises the following steps: premixing the recycled coarse aggregate, cement and the high-efficiency air-entraining water reducing agent, adding water, and uniformly stirring to obtain a pasty concrete mixture; uniformly mixing the input mineral powder with the pasty concrete mixture; and finally, adding the recycled fine aggregate until the recycled fine aggregate is uniformly mixed with the pasty concrete mixture. According to the green high-performance concrete, waste concrete and waste sintered bricks are recycled, resources are saved, and the green high-performance concrete is green and environmentally friendly. In addition, internal pores of the treated waste concrete are reduced, the hardness is improved, and the prepared concrete has high impermeability and compressive strength.
本申请涉及混凝土的技术领域，具体公开了一种绿色高性能混凝土及其制备方法及用途。一种绿色高性能混凝土包括：经过预处理的再生粗骨料和再生细骨料、水泥、高效引气减水剂、矿粉和水；其制备方法为：将再生粗骨料、水泥和高效引气减水剂进行干料预混，后加水搅拌均匀制得浆状混凝土拌合物；再将投入矿粉与浆状混凝土拌合物混合均匀；最后投入再生细骨料直至再生细骨料与浆状混凝土拌合物混合均匀。本申请的绿色高性能混凝土，将废弃混凝土和废弃烧结砖再利用，节约资源，绿色环保。并且经过处理后的废弃混凝土，内部的孔隙减少，硬度提高，制备的混凝土具有较高的抗渗强度和抗压强度。
Green high-performance concrete and preparation method thereof
| Europäisches Patentamt | 2023
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