Influence of the addition of "synthetic termite saliva" in the compressive strength and water absorption of compacted soil-cement

Abstract The aim of this paper is to determine the effect of adding 0.1 wt% of "synthetic termite saliva" on a fine and clayey sand latosol (76.5% sand) from the region of Bauru, SP (Brazil), stabilized with 1% to 3% of cement. Compacted cylindrical specimens (with standard Proctor energy) were tested to determine their compressive strength and water absorption. The results indicate that the use of the chemical stabilizer increased by at least 35% the compressive strength and reduced by up to 13% the water absorption of the samples. This work contributes to efforts aimed at reducing the consumption of cement through the production of stabilized compressed earth blocks and bricks (CEB) and rammed earth.

摘要
本研究旨在探究添加0.1%质量百分比的"合成白蚁唾液"对取自巴西圣保罗州包鲁地区的细粒黏土质砂质砖红壤（砂粒占比76.5%）的改性效果，该土壤采用1%~3%的水泥进行固化处理。采用标准普氏击实能制备圆柱形压实试件，并对其开展抗压强度与吸水率测试。测试结果表明，该化学外加剂可使试样的抗压强度提升至少35%，同时将吸水率最高降低13%。本研究可为通过制备稳定化压实土块、压实固化土砖（CEB）以及夯土材料以降低水泥消耗量的相关工作提供支撑。