A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shaping optimization method of waste concrete recycled aggregate
The invention provides a shaping optimization method of waste concrete recycled aggregate, and belongs to the technical field of green building materials. The method comprises the following steps: firstly, putting a crushed material of waste concrete into a saturated salt solution for first soaking so as to fully infiltrate old mortar on the surface of the crushed material, and when water evaporates to separate out salt crystals, the crystals can burst or fluffy the waste mortar on the surface of the waste concrete, so that the waste mortar is convenient to remove, and the stone interface condition is improved; through grinding and shaping, particle shaping and surface old mortar removal are further achieved; through chemical slurry soaking, the chemical slurry is fully absorbed, and in the curing process, the superfine cement, the superfine silica fume and the polymer are cured on surface cracks and surfaces of the stones, so that the interface performance of the stones is further improved, and the concrete with higher performance is prepared.
本发明提供了一种废旧混凝土再生骨料的整形优化方法，属于绿色建材技术领域。本发明先将废旧混凝土的破碎料置于饱和盐溶液中进行第一浸泡以充分浸润破碎料表面旧砂浆，当水分蒸发会析出盐晶体，晶体会撑破或蓬松废旧混凝土表面废旧砂浆，便于废旧砂浆的清除，改善石料界面条件；通过研磨整形，进一步实现颗粒整形与表面旧砂浆去除；通过化学浆液浸泡，充分吸收化学浆液，在养护过程中，超细水泥、超细硅灰及聚合物在石料表面裂隙及表面固化，进一步提升石料界面性能，从而制备更高性能的混凝土。
Shaping optimization method of waste concrete recycled aggregate
The invention provides a shaping optimization method of waste concrete recycled aggregate, and belongs to the technical field of green building materials. The method comprises the following steps: firstly, putting a crushed material of waste concrete into a saturated salt solution for first soaking so as to fully infiltrate old mortar on the surface of the crushed material, and when water evaporates to separate out salt crystals, the crystals can burst or fluffy the waste mortar on the surface of the waste concrete, so that the waste mortar is convenient to remove, and the stone interface condition is improved; through grinding and shaping, particle shaping and surface old mortar removal are further achieved; through chemical slurry soaking, the chemical slurry is fully absorbed, and in the curing process, the superfine cement, the superfine silica fume and the polymer are cured on surface cracks and surfaces of the stones, so that the interface performance of the stones is further improved, and the concrete with higher performance is prepared.
本发明提供了一种废旧混凝土再生骨料的整形优化方法，属于绿色建材技术领域。本发明先将废旧混凝土的破碎料置于饱和盐溶液中进行第一浸泡以充分浸润破碎料表面旧砂浆，当水分蒸发会析出盐晶体，晶体会撑破或蓬松废旧混凝土表面废旧砂浆，便于废旧砂浆的清除，改善石料界面条件；通过研磨整形，进一步实现颗粒整形与表面旧砂浆去除；通过化学浆液浸泡，充分吸收化学浆液，在养护过程中，超细水泥、超细硅灰及聚合物在石料表面裂隙及表面固化，进一步提升石料界面性能，从而制备更高性能的混凝土。
Shaping optimization method of waste concrete recycled aggregate
一种废旧混凝土再生骨料的整形优化方法
YAO XINYU (author) / LIU YU (author) / MA JIN (author) / DU RONGYAO (author) / LI YINGFU (author) / LU JUNYUAN (author)
2024-01-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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