Effect of gypsum and cement content on unconfined compressive strength of soft sediment

Masoud Janbaz; Lauren lacobucci; Kelly Francisco; Robert Miskewitz; Masaki Kitazume; Ali Maher

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Effect of gypsum and cement content on unconfined compressive strength of soft sediment

机译：石膏和水泥含量对软沉积物非整合抗压强度的影响

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This study investigates the impact of gypsum and Portland cement as binding agents on the stabilization of soft sediment. Eight combinations of gypsum and Portland cement were studied to identify the optimum gypsum content for a total binder content of 8% (by wet weight of sediment). Samples were cured for 7 and 28 days at high and low temperatures (4°C and 20°C). Unconfined compressive strength and moisture content were measured to assess the effectiveness of each mixing condition on soil engineering properties. The results of the study show that the inclusion of gypsum in mixtures of Portland cement and soft sediment can significantly enhance the strength gain of stabilized sediment. The optimum mixture was identified as 1.4% gypsum and 6.6% Portland cement (of the total mass of sediment). This combination produced a 50% increase in strength when compared to a standard 8% Portland cement mixture.

机译：本研究调查石膏和波特兰水泥对柔和沉积物稳定的结合剂的影响。研究了石膏和波特兰水泥的八种组合，鉴定总粘合剂含量为8％的最佳石膏含量（沉积物的湿重）。在高温和低温（4℃和20℃）下固化样品7和28天。测量非束缚的抗压强度和水分含量以评估每个混合条件对土壤工程性质的有效性。该研究的结果表明，在波特兰水泥和软沉积物的混合物中包含石膏可以显着提高稳定沉积物的强度增益。将最佳混合物鉴定为1.4％石膏和6.6％的波特兰水泥（沉积物总质量）。与标准的8％波特兰水泥混合物相比，这种组合产生了50％的强度增加。

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来源
《International journal of geotechnical engineering》 |2021年第3期|373-378|共6页
作者
Masoud Janbaz; Lauren lacobucci; Kelly Francisco; Robert Miskewitz; Masaki Kitazume; Ali Maher;
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作者单位

Center for Advanced Infrastructure and Transportation Rutgers the State University of New Jersey Piscataway NJ USA;

Center for Advanced Infrastructure and Transportation Rutgers the State University of New Jersey Piscataway NJ USA;

Center for Advanced Infrastructure and Transportation Rutgers the State University of New Jersey Piscataway NJ USA;

Center for Advanced Infrastructure and Transportation Rutgers the State University of New Jersey Piscataway NJ USA;

Center for Advanced Infrastructure and Transportation Tokyo Institute of Technology Tokyo Japan;

Center for Advanced Infrastructure and Transportation Rutgers the State University of New Jersey Piscataway NJ USA;

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正文语种 eng
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Dredging; and reclamation; ground improvement; strength; and testing of materials;

机译：疏浚;和填海;地面改善;力量;和材料测试;

Effect of gypsum and cement content on unconfined compressive strength of soft sediment

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