A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Regeneration method of waste concrete and regenerated building material
The invention relates to a regeneration method of waste concrete and a regenerated building material, and relates to the technical field of building materials.The regeneration method of the waste concrete comprises the following steps that the waste concrete is crushed and screened, and waste concrete particles are obtained; adding the waste concrete particles, a silane coupling agent and ionic liquid into a polyethylene glycol aqueous solution, and stirring and mixing to obtain a first mixture; and alternately and circularly treating the first mixture in an ultrasonic field and a pulsed electric field, and the like. Through an innovative waste concrete regeneration mode of combined treatment of physical modification and chemical modification, not only is the water absorption rate of the obtained recycled aggregate reduced, but also the activity of the obtained recycled aggregate is improved. The modified coconut shell powder and other components are subsequently matched for use, so that the compressive strength, cracking resistance and other comprehensive mechanical properties of the regenerated building material are remarkably improved, and the regenerated building material can meet the use requirements in low-temperature and other severe working environments.
本发明涉及一种废弃混凝土的再生方法、再生建筑材料，涉及建筑材料技术领域，所述废弃混凝土的再生方法包括以下步骤：将废弃混凝土进行破碎筛分，得到废弃混凝土颗粒；将所述废弃混凝土颗粒、硅烷偶联剂和离子液体加入聚乙二醇水溶液中进行搅拌混合，得到第一混合料；将所述第一混合料于超声场和脉冲电场中进行交替循环处理等步骤。本发明通过创新的物理改性和化学改性联合处理的废弃混凝土再生方式，不仅降低了所得再生骨料的吸水率，同时提高了所得再生骨料的活性。后续将其与改性椰壳粉等组分搭配使用，显著改善了再生建筑材料的抗压强度和抗开裂性等综合力学性能，从而使得再生建筑材料能够适应如低温等恶劣作业环境下的使用要求。
Regeneration method of waste concrete and regenerated building material
The invention relates to a regeneration method of waste concrete and a regenerated building material, and relates to the technical field of building materials.The regeneration method of the waste concrete comprises the following steps that the waste concrete is crushed and screened, and waste concrete particles are obtained; adding the waste concrete particles, a silane coupling agent and ionic liquid into a polyethylene glycol aqueous solution, and stirring and mixing to obtain a first mixture; and alternately and circularly treating the first mixture in an ultrasonic field and a pulsed electric field, and the like. Through an innovative waste concrete regeneration mode of combined treatment of physical modification and chemical modification, not only is the water absorption rate of the obtained recycled aggregate reduced, but also the activity of the obtained recycled aggregate is improved. The modified coconut shell powder and other components are subsequently matched for use, so that the compressive strength, cracking resistance and other comprehensive mechanical properties of the regenerated building material are remarkably improved, and the regenerated building material can meet the use requirements in low-temperature and other severe working environments.
本发明涉及一种废弃混凝土的再生方法、再生建筑材料，涉及建筑材料技术领域，所述废弃混凝土的再生方法包括以下步骤：将废弃混凝土进行破碎筛分，得到废弃混凝土颗粒；将所述废弃混凝土颗粒、硅烷偶联剂和离子液体加入聚乙二醇水溶液中进行搅拌混合，得到第一混合料；将所述第一混合料于超声场和脉冲电场中进行交替循环处理等步骤。本发明通过创新的物理改性和化学改性联合处理的废弃混凝土再生方式，不仅降低了所得再生骨料的吸水率，同时提高了所得再生骨料的活性。后续将其与改性椰壳粉等组分搭配使用，显著改善了再生建筑材料的抗压强度和抗开裂性等综合力学性能，从而使得再生建筑材料能够适应如低温等恶劣作业环境下的使用要求。
Regeneration method of waste concrete and regenerated building material
一种废弃混凝土的再生方法、再生建筑材料
HUO ZHIQIANG (author) / YE QING (author) / DING HONGRUI (author) / YANG CHENHUI (author) / YANG GUOLI (author) / ZHU YUPING (author) / FANG YUAN (author) / FAN BOWEN (author) / ZHANG MENGYING (author) / WEN ANFEI (author)
2025-01-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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