A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-content phosphogypsum foam light soil roadbed backfill material and preparation method thereof
The invention discloses a high-content phosphogypsum foam light soil roadbed backfill material and a preparation method thereof. The high-content phosphogypsum foam light soil roadbed backfill material is prepared from the following raw materials: cement, mineral powder, phosphogypsum, a high-stability composite foaming agent, a coagulant, a composite waterproof agent, a polycarboxylic acid water reducing agent, water and corn straw fibers. According to the high-doping-amount phosphogypsum foam light soil roadbed backfill material, the doping amount of the phosphogypsum in the cementing material exceeds 50%, the production cost of the foam light soil is effectively reduced, meanwhile, the phosphogypsum is consumed, and the high-doping-amount phosphogypsum foam light soil roadbed backfill material has important significance on low-carbon sustainable development of the building material industry. The high-stability composite foaming agent is adopted for prolonging the stability of foam, meanwhile, the slow-dissolving phosphogypsum and the alkaline coagulant are adopted for jointly accelerating coagulation, the early strength of the foam concrete is improved, the stearic acid and latex composite waterproof agent is adopted, the water resistance of the high-dosage phosphogypsum foam light soil is improved, and the water resistance of the high-dosage phosphogypsum foam light soil is improved. Therefore, the strength and the water resistance of the high-content phosphogypsum foam light weight meet the construction filling requirements of a roadbed backfill material.
本发明公开了一种高掺量磷石膏泡沫轻质土路基回填材料及其制备方法，由包括以下原料：水泥、矿粉、磷石膏、高稳定型复合发泡剂、促凝剂、复合防水剂、聚羧酸系减水剂、水、玉米秸秆纤维。本发明的高掺量磷石膏泡沫轻质土路基回填材料，胶凝材料中磷石膏的掺量超过50％，有效降低泡沫轻质土生产成本，同时消纳磷石膏，对于建筑材料行业低碳可持续发展具有重要意义。本发明采用高稳定复合型发泡剂延长泡沫的稳定性，同时采用慢溶磷石膏和碱性促凝剂共同促凝的方式，提高泡沫混凝土早期强度，通过硬脂酸和乳胶复合防水剂，提升了高掺量磷石膏泡沫轻质土的耐水性，从而使高掺量磷石膏泡沫轻质的强度和耐水性达到路基回填材料的施工填筑要求。
High-content phosphogypsum foam light soil roadbed backfill material and preparation method thereof
The invention discloses a high-content phosphogypsum foam light soil roadbed backfill material and a preparation method thereof. The high-content phosphogypsum foam light soil roadbed backfill material is prepared from the following raw materials: cement, mineral powder, phosphogypsum, a high-stability composite foaming agent, a coagulant, a composite waterproof agent, a polycarboxylic acid water reducing agent, water and corn straw fibers. According to the high-doping-amount phosphogypsum foam light soil roadbed backfill material, the doping amount of the phosphogypsum in the cementing material exceeds 50%, the production cost of the foam light soil is effectively reduced, meanwhile, the phosphogypsum is consumed, and the high-doping-amount phosphogypsum foam light soil roadbed backfill material has important significance on low-carbon sustainable development of the building material industry. The high-stability composite foaming agent is adopted for prolonging the stability of foam, meanwhile, the slow-dissolving phosphogypsum and the alkaline coagulant are adopted for jointly accelerating coagulation, the early strength of the foam concrete is improved, the stearic acid and latex composite waterproof agent is adopted, the water resistance of the high-dosage phosphogypsum foam light soil is improved, and the water resistance of the high-dosage phosphogypsum foam light soil is improved. Therefore, the strength and the water resistance of the high-content phosphogypsum foam light weight meet the construction filling requirements of a roadbed backfill material.
本发明公开了一种高掺量磷石膏泡沫轻质土路基回填材料及其制备方法，由包括以下原料：水泥、矿粉、磷石膏、高稳定型复合发泡剂、促凝剂、复合防水剂、聚羧酸系减水剂、水、玉米秸秆纤维。本发明的高掺量磷石膏泡沫轻质土路基回填材料，胶凝材料中磷石膏的掺量超过50％，有效降低泡沫轻质土生产成本，同时消纳磷石膏，对于建筑材料行业低碳可持续发展具有重要意义。本发明采用高稳定复合型发泡剂延长泡沫的稳定性，同时采用慢溶磷石膏和碱性促凝剂共同促凝的方式，提高泡沫混凝土早期强度，通过硬脂酸和乳胶复合防水剂，提升了高掺量磷石膏泡沫轻质土的耐水性，从而使高掺量磷石膏泡沫轻质的强度和耐水性达到路基回填材料的施工填筑要求。
High-content phosphogypsum foam light soil roadbed backfill material and preparation method thereof
一种高掺量磷石膏泡沫轻质土路基回填材料及其制备方法
ZHANG GAOZHAN (author) / HE YANG (author) / YANG JUN (author) / DING QINGJUN (author) / LIU KAI (author) / CHEN HAO (author) / ZHU JIAHAO (author) / LIU LI (author) / ZHANG HAIFENG (author) / SHI JIALONG (author)
2023-11-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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