[Objective]The aim was to research water retention of superabsorbent polymer （SAP） in sandy soils. [Method] With soils from an ancient course in the Yel ow River as materials, acrylate SAP was taken as water retenti...[Objective]The aim was to research water retention of superabsorbent polymer （SAP） in sandy soils. [Method] With soils from an ancient course in the Yel ow River as materials, acrylate SAP was taken as water retention materials to conduct the test. [Result] With 0.2%-0.4% SAP added, dewatering period of sandy soil extended after irrigation; the period of water retention quantity over 10% last for 42 d, which was significantly more than that of the control group in 16 d （saturated water reducing to 10%）; water retention effect proved better at the 2nd irrigation without soil stirring compared with the 1st irrigation. [Conclusion] The mixture of SAP with sandy soils promotes water retention in soils.展开更多
Lightweight geomaterial（LWGM）possesses such merit characteristics as low unit weight,environmental protection（recycling these materials instead of stockpiling them）,buffering mechanical property and thermal insula...Lightweight geomaterial（LWGM）possesses such merit characteristics as low unit weight,environmental protection（recycling these materials instead of stockpiling them）,buffering mechanical property and thermal insulation[1].LWGM,an attractive substitute for earth fills,展开更多
基金Supported by Jiangsu Agricultural Science and Technology Innovation Fund[CX(13)3031]~~
文摘[Objective]The aim was to research water retention of superabsorbent polymer （SAP） in sandy soils. [Method] With soils from an ancient course in the Yel ow River as materials, acrylate SAP was taken as water retention materials to conduct the test. [Result] With 0.2%-0.4% SAP added, dewatering period of sandy soil extended after irrigation; the period of water retention quantity over 10% last for 42 d, which was significantly more than that of the control group in 16 d （saturated water reducing to 10%）; water retention effect proved better at the 2nd irrigation without soil stirring compared with the 1st irrigation. [Conclusion] The mixture of SAP with sandy soils promotes water retention in soils.
文摘Lightweight geomaterial（LWGM）possesses such merit characteristics as low unit weight,environmental protection（recycling these materials instead of stockpiling them）,buffering mechanical property and thermal insulation[1].LWGM,an attractive substitute for earth fills,
