论文部分内容阅读
传统生土基材料在抗压强度、变形能力等方面与现代建材相比存在较大差距,为了改善传统生土基材料的基本力学性能,在生土基材料中掺入改性材料:糯米浆、玻璃渣、竹纤维,形成改性生土基材料。设计1组素土试件和4组不同配比的改性生土试件,由土工试验方法制作得到直径102 mm×高116 mm的圆柱体改性生土基试件共5组,24个。通过对试件进行轴心抗压试验研究,得到不同掺料以及不同掺量试件的抗压强度、破坏荷载、断裂能和位移值。分析不同掺料以及不同掺量对生土试块抗压强度、变形能力、断裂能的影响规律。结果表明,糯米浆能大幅度提高生土块材的抗压强度,但对试件的变形能力没有提高;玻璃渣对生土块材抗压强度有一定提高,竹纤维对生土块材变形能力有较大提高,试件破坏时整体性较好,大大改善试件脆性性能。
Compared with the modern building materials, the traditional raw earth-based materials have a big gap in compressive strength and deformation capacity. In order to improve the basic mechanical properties of the traditional raw earth-based materials, modified materials are incorporated into the raw materials: glutinous rice paste , Glass slag, bamboo fiber, the formation of modified raw earth-based materials. A group of plain soil samples and four groups of modified natural soil samples with different proportions were designed. A total of 5 groups of cylindrical modified soil-base samples with a diameter of 102 mm and a height of 116 mm were produced by the geotechnical test. Twenty-four . Compressive strength, failure load, fracture energy and displacement of different spiked samples and different samples were obtained by axial compressive test. The influence of different spice and different dosage on the compressive strength, deformability and fracture energy of the soil samples was analyzed. The results show that the glutinous rice pulp can greatly improve the compressive strength of raw soil blocks, but the deformation capacity of the samples does not increase; the glass slag has a certain increase in compressive strength of raw blocks, bamboo fiber deformation of raw blocks The ability to have a greater increase, the integrity of the specimen damage is better, greatly improving the brittleness of the specimen.