Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled aggregate self-compacting concrete and preparation method thereof
The invention relates to the field of building materials, and particularly discloses recycled aggregate self-compacting concrete and a preparation method thereof. The recycled aggregate self-compacting concrete comprises the following components: cement, modified recycled aggregate, sand, fly ash, mineral powder, an additive, water and plant fibers, the modified recycled aggregate is prepared by the following method: crushing, sorting and sieving waste concrete to prepare aggregate particles; uniformly mixing water glass, PVA, nano silicon dioxide, phosphoric acid and water to prepare a composite liquid, and soaking the aggregate particles in the composite liquid; placing the aggregate particles soaked in the composite liquid in a closed container, vacuumizing, introducing carbon dioxide gas, increasing the pressure to 0.1-0.4 MPa, and maintaining the pressure for 20-24 hours to prepare reinforced aggregate particles; and soaking the reinforced aggregate particles in the water-based organic silicon resin emulsion, and drying. The recycled aggregate self-compacting concrete has the advantages of compact structure, high mechanical strength and strong freezing resistance.
本申请涉及建筑材料领域，具体公开了一种再生骨料自密实混凝土及其制备方法。再生骨料自密实混凝土包括以下组分：水泥、改性再生骨料、砂子、粉煤灰、矿粉、外加剂、水、植物纤维；改性再生骨料由以下方法制成：将废弃混凝土经粉碎、分拣和过筛后，制成骨料颗粒；将水玻璃、PVA、纳米二氧化硅、磷酸和水混合均匀，制成复合液，将骨料颗粒置于复合液中，浸泡；将浸泡复合液后的骨料颗粒置于密闭容器中，抽真空，通入二氧化碳气体，升压至0.1‑0.4MPa，保压20‑24h，制成强化骨料颗粒；将强化骨料颗粒在水性有机硅树脂乳液中浸泡，干燥。本申请的再生骨料自密实混凝土具有结构致密，力学强度高，抗冻性强的优点。
Recycled aggregate self-compacting concrete and preparation method thereof
The invention relates to the field of building materials, and particularly discloses recycled aggregate self-compacting concrete and a preparation method thereof. The recycled aggregate self-compacting concrete comprises the following components: cement, modified recycled aggregate, sand, fly ash, mineral powder, an additive, water and plant fibers, the modified recycled aggregate is prepared by the following method: crushing, sorting and sieving waste concrete to prepare aggregate particles; uniformly mixing water glass, PVA, nano silicon dioxide, phosphoric acid and water to prepare a composite liquid, and soaking the aggregate particles in the composite liquid; placing the aggregate particles soaked in the composite liquid in a closed container, vacuumizing, introducing carbon dioxide gas, increasing the pressure to 0.1-0.4 MPa, and maintaining the pressure for 20-24 hours to prepare reinforced aggregate particles; and soaking the reinforced aggregate particles in the water-based organic silicon resin emulsion, and drying. The recycled aggregate self-compacting concrete has the advantages of compact structure, high mechanical strength and strong freezing resistance.
本申请涉及建筑材料领域，具体公开了一种再生骨料自密实混凝土及其制备方法。再生骨料自密实混凝土包括以下组分：水泥、改性再生骨料、砂子、粉煤灰、矿粉、外加剂、水、植物纤维；改性再生骨料由以下方法制成：将废弃混凝土经粉碎、分拣和过筛后，制成骨料颗粒；将水玻璃、PVA、纳米二氧化硅、磷酸和水混合均匀，制成复合液，将骨料颗粒置于复合液中，浸泡；将浸泡复合液后的骨料颗粒置于密闭容器中，抽真空，通入二氧化碳气体，升压至0.1‑0.4MPa，保压20‑24h，制成强化骨料颗粒；将强化骨料颗粒在水性有机硅树脂乳液中浸泡，干燥。本申请的再生骨料自密实混凝土具有结构致密，力学强度高，抗冻性强的优点。
Recycled aggregate self-compacting concrete and preparation method thereof
一种再生骨料自密实混凝土及其制备方法
CHE XIANGJUN (Autor:in)
06.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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