A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lightweight foam soil and preparation method thereof
The invention discloses light foamed soil and a preparation method thereof, and belongs to the technical field of foamed soil preparation, the light foamed soil is formed by mixing a slurry component and a foam component, and the slurry component comprises cement, fine sand, modified bentonite, a water reducing agent and water; the foam component comprises a composite foaming agent, hydroxyethyl cellulose and water, bentonite is modified by using an organic modification method, the prepared modified bentonite is rich in a siloxane structure, on one hand, the siloxane structure is hydrolyzed to generate silanol, so that the bonding tightness between the bentonite and other raw materials such as cement, fine sand and the foaming agent is improved, and on the other hand, the bonding strength between the bentonite and the other raw materials such as cement, fine sand and the foaming agent is improved. A siloxane structure is subjected to self-polycondensation to generate an organic hydrophobic network, so that the impermeability of the foam soil is improved; the protein foaming agent and the surfactant are compounded to prepare the composite foaming agent, the modified foaming agent with excellent foaming performance and foam stability is finally prepared, and the light foam soil prepared by using the modified foaming agent has uniform compressive strength and impermeability in all directions.
本发明公开了一种轻质泡沫土及其制备方法，属于泡沫土制备技术领域，轻质泡沫土由料浆组分和泡沫组分混合而成，料浆组分包括水泥、细砂、改性膨润土、减水剂和水；泡沫组分包括复合发泡剂、羟乙基纤维素和水，其中，本发明利用有机改性法对膨润土进行改性，制备的改性膨润土富含硅氧烷结构，硅氧烷结构一方面水解产生硅醇，提高膨润土与水泥、细砂和发泡剂等其他原料之间的结合紧密度，另一方面，硅氧烷结构自缩聚产生有机疏水网络，提高泡沫土的抗渗性能；本发明将蛋白质发泡剂与表面活性剂复配制备复合发泡剂，最终制备了起泡性能和泡沫稳定性俱佳的改性发泡剂，利用改性发泡剂制备的轻质泡沫土在各个方向具有均匀的抗压强度和抗渗性能。
Lightweight foam soil and preparation method thereof
The invention discloses light foamed soil and a preparation method thereof, and belongs to the technical field of foamed soil preparation, the light foamed soil is formed by mixing a slurry component and a foam component, and the slurry component comprises cement, fine sand, modified bentonite, a water reducing agent and water; the foam component comprises a composite foaming agent, hydroxyethyl cellulose and water, bentonite is modified by using an organic modification method, the prepared modified bentonite is rich in a siloxane structure, on one hand, the siloxane structure is hydrolyzed to generate silanol, so that the bonding tightness between the bentonite and other raw materials such as cement, fine sand and the foaming agent is improved, and on the other hand, the bonding strength between the bentonite and the other raw materials such as cement, fine sand and the foaming agent is improved. A siloxane structure is subjected to self-polycondensation to generate an organic hydrophobic network, so that the impermeability of the foam soil is improved; the protein foaming agent and the surfactant are compounded to prepare the composite foaming agent, the modified foaming agent with excellent foaming performance and foam stability is finally prepared, and the light foam soil prepared by using the modified foaming agent has uniform compressive strength and impermeability in all directions.
本发明公开了一种轻质泡沫土及其制备方法，属于泡沫土制备技术领域，轻质泡沫土由料浆组分和泡沫组分混合而成，料浆组分包括水泥、细砂、改性膨润土、减水剂和水；泡沫组分包括复合发泡剂、羟乙基纤维素和水，其中，本发明利用有机改性法对膨润土进行改性，制备的改性膨润土富含硅氧烷结构，硅氧烷结构一方面水解产生硅醇，提高膨润土与水泥、细砂和发泡剂等其他原料之间的结合紧密度，另一方面，硅氧烷结构自缩聚产生有机疏水网络，提高泡沫土的抗渗性能；本发明将蛋白质发泡剂与表面活性剂复配制备复合发泡剂，最终制备了起泡性能和泡沫稳定性俱佳的改性发泡剂，利用改性发泡剂制备的轻质泡沫土在各个方向具有均匀的抗压强度和抗渗性能。
Lightweight foam soil and preparation method thereof
一种轻质泡沫土及其制备方法
CHENG TAO (author) / QIAN SHENCHUN (author) / LIU XIN (author) / ZHANG JUN (author) / YAO YUNLONG (author) / JING HANLIN (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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