2022 SFP 2-1 COMPLETED
Release time: 2024/07/17 Publisher： original Views：
Research and demonstration application of admixtures for (ready-mixed fluid) solidified soil
Principal Investigator：
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Wang Jian CNBM Zhongyan Technology Co.,Ltd. |
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Project Background:
Soil reinforcement has always been a research hotspot of scholars at home and abroad. Soil solidifying agent, which adsorb on the surface of soil particles through ion exchange and prevent foreign water from adsorbing again into a film to solidify the soil, is widely used in construction and road traffic construction. The use of solidified soil construction technology with a certain flow state or half flow state, which convenient for the construction process and reduce carbon emissions.
Aims & Goals:
1. To form a series of solidification soil with adjustable performance according to different soil properties, different construction requirements and application scenarios;
2. To prepare a special hydrocarbon-based dispersants and anti-separation agents, which are used to improve the fluidity of fluid soil, the mechanical properties and anti-dispersion properties of solidified soil;
3. To realize the slump of solidified soil no less than 240 mm, the 28 d compressive strength is controlled at 1.0 Mpa-10.0 MPa, and the water stability coefficient is no less than 110%.
1. A dispersant for ready-mixed fluid solidified soil was prepared by copolymerization of sodium methacrylate sulfonate, methyl acrylate, acrylic acid, and polyether macromers, which improved the flowability of the fluid solidified soil by over 250mm and the slump of 1.5 h was greater than 200mm;
2. Developed resin composite technology of epoxy resin E51, fatty amine 593 and phenolic amine 8813 with backfill soil, prepared two types of polymer solidified soil by using compaction techniques with the 6 hours compressive strength is 5Mpa and 7d unconfined compressive strength exceeded 30Mpa.
PAPER 1: 'Research on properties of sulfoaluminate cement-based premixed fluid solidified soil curing agent' (in Chinese)
New Building Materials, 2023, 50(3): 42-45.
PAPER 2: 'Fluid Solidification of Construction Waste Soil' (in Chinese)
Industrial Construction, 2023, 53: 695-697.
PATENT 1: A special dispersant for soil stabilizing admixture and its preparation method and application, ZL 202310753459.8 (granted)
PATENT 2: Anti-washout stabilizing admixtures for Solidification of underwater sludge and its preparation method and application, ZL 202310260905.1 (granted)
DEMONSTRATION 1: 'Admixtures for Solidified Soil Applied to Fabricated Building'.
DEMONSTRATION 2: 'Build a large-scale production line of admixtures for fluidized solidified soil'.