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A platform for research: civil engineering, architecture and urbanism
Polyacrylonitrile fiber foam light soil applied to roadbed and preparation method of polyacrylonitrile fiber foam light soil
The invention discloses polyacrylonitrile fiber foam light soil applied to a roadbed and a preparation method of the polyacrylonitrile fiber foam light soil. The invention belongs to the field of light soil for buildings and preparation thereof. The invention aims to solve the technical problems that the existing foam light soil is insufficient in strength and easy to crack under a low-density condition. The light soil is prepared from cement, silica fume, polyacrylonitrile fibers, water, foaming liquid, waterborne epoxy resin, hydroxyethyl cellulose and a foam stabilizer. The method comprises the following steps: stirring and mixing the silica fume, the cement and the polyacrylonitrile fiber; then adding a hydroxyethyl cellulose solution, then adding foam prepared from a foaming solution and a foam stabilizer by using an air compression foaming machine, finally adding water-borne epoxy resin, measuring a flow value, pouring the resin into a mold, and performing curing, condensing and hardening to obtain the polyacrylonitrile fiber foam light soil applied to the roadbed. The wet density of the light soil is controlled to be 600-700 kg/m<3>, the 28d unconfined compressive strength is 1.85-2.18 MPa, the 28d breaking strength is 1.24-1.50 MPa, and the light soil has the advantages of being excellent in light weight, high in strength and high in fluidity.
一种应用于路基的聚丙烯腈纤维泡沫轻质土及其制备方法。本发明属于建筑用轻质土及其制备领域。本发明是为了解决现有泡沫轻质土在低密度条件下强度不足、易开裂的技术问题。本发明的轻质土由水泥、硅灰、聚丙烯腈纤维、水、发泡液、水性环氧树脂、羟乙基纤维素和稳泡剂制备而成。方法：先将硅灰、水泥和聚丙烯腈纤维搅拌混合；然后加入羟乙基纤维素溶液，再加入由发泡液和稳泡剂利用空气压缩发泡机制成的泡沫，最后加入水性环氧树脂，测量流动值后浇筑于模具，经养护凝结硬化，得到应用于路基的聚丙烯腈纤维泡沫轻质土。本发明的轻质土湿密度控制在600‑700kg/m3，28d无侧限抗压强度1.85‑2.18MPa，28d抗折强度1.24‑1.50MPa，具有优异轻质高强、高流动性的优点。
Polyacrylonitrile fiber foam light soil applied to roadbed and preparation method of polyacrylonitrile fiber foam light soil
The invention discloses polyacrylonitrile fiber foam light soil applied to a roadbed and a preparation method of the polyacrylonitrile fiber foam light soil. The invention belongs to the field of light soil for buildings and preparation thereof. The invention aims to solve the technical problems that the existing foam light soil is insufficient in strength and easy to crack under a low-density condition. The light soil is prepared from cement, silica fume, polyacrylonitrile fibers, water, foaming liquid, waterborne epoxy resin, hydroxyethyl cellulose and a foam stabilizer. The method comprises the following steps: stirring and mixing the silica fume, the cement and the polyacrylonitrile fiber; then adding a hydroxyethyl cellulose solution, then adding foam prepared from a foaming solution and a foam stabilizer by using an air compression foaming machine, finally adding water-borne epoxy resin, measuring a flow value, pouring the resin into a mold, and performing curing, condensing and hardening to obtain the polyacrylonitrile fiber foam light soil applied to the roadbed. The wet density of the light soil is controlled to be 600-700 kg/m<3>, the 28d unconfined compressive strength is 1.85-2.18 MPa, the 28d breaking strength is 1.24-1.50 MPa, and the light soil has the advantages of being excellent in light weight, high in strength and high in fluidity.
一种应用于路基的聚丙烯腈纤维泡沫轻质土及其制备方法。本发明属于建筑用轻质土及其制备领域。本发明是为了解决现有泡沫轻质土在低密度条件下强度不足、易开裂的技术问题。本发明的轻质土由水泥、硅灰、聚丙烯腈纤维、水、发泡液、水性环氧树脂、羟乙基纤维素和稳泡剂制备而成。方法：先将硅灰、水泥和聚丙烯腈纤维搅拌混合；然后加入羟乙基纤维素溶液，再加入由发泡液和稳泡剂利用空气压缩发泡机制成的泡沫，最后加入水性环氧树脂，测量流动值后浇筑于模具，经养护凝结硬化，得到应用于路基的聚丙烯腈纤维泡沫轻质土。本发明的轻质土湿密度控制在600‑700kg/m3，28d无侧限抗压强度1.85‑2.18MPa，28d抗折强度1.24‑1.50MPa，具有优异轻质高强、高流动性的优点。
Polyacrylonitrile fiber foam light soil applied to roadbed and preparation method of polyacrylonitrile fiber foam light soil
一种应用于路基的聚丙烯腈纤维泡沫轻质土及其制备方法
XING CHAO (author) / QIU TAIRUI (author) / TAN YIQIU (author) / XU JIQUAN (author) / WANG YONGFENG (author) / LIU XINQING (author) / CHEN CHANGMING (author) / WANG LIQING (author) / ZHAO LITING (author) / DONG SHUHUI (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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