非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 ASTM D6243-13 前三页,或者稍后再访问。
您也可以尝试购买此标准,
点击右侧 “购买” 按钮开始采购(由第三方提供)。
点击下载后,生成下载文件时间比较长,请耐心等待......
5.1 The procedure described in this test method for the shear resistance for the GCL or the GCL interface is intended as a performance test to provide the user with a set of design values for the test conditions examined. The test specimens and conditions, including normal stresses, are generally selected by the user.
5.2 This test method may be used for acceptance testing of commercial shipments of GCLs, but caution is advised as outlined in 5.2.1.
5.2.1 The shear resistance can be expressed only in terms of actual test conditions (see Note 1 and Note 2). The determined value may be a function of the applied normal stress, material characteristics, size of sample, moisture content, drainage conditions, displacement rate, magnitude of displacement, and other parameters.
5.2.2 This test method measures the total resistance to shear within a GCL or between a GCL and adjacent material. The total shear resistance may be a combination of sliding, rolling and interlocking of material components
5.2.3 This test method does not distinguish between individual mechanisms, which may be a function of the soil and GCL used, method of material placement and hydration, normal and shear stresses applied, means used to hold the GCL in place, rate of horizontal displacement, and other factors. Every effort should be made to identify, as closely as is practicable, the sheared area and failure mode of the specimen. Care should be taken, including close visual inspection of the specimen after testing, to ensure that the testing conditions are representative of those being investigated.
5.3 The test results can be used in the design of GCL applications, including but not limited to, the design of liners and caps for landfills, cutoffs for dams, and other hydraulic barriers.
5.4 While the peak strengths and post-peak strengths measured by this test are generally reproducible by multiple laboratories, the displacement at which peak strength and post-peak strength occurs and the shape of the shear stress-horizontal displacement curve may differ considerably from one test device to another due to differences in specimen mounting, gripping surfaces and material preparation. ......
UU三轴试验通常用于短期工程问题,CU和CD三轴试验用于评估长期工程问题。不固结不排水(UU)用这种方法,以总应力来测量剪切强度。土壤试样不进行固结,必须保持其原始结构和含水量,使其抗压强度取决于现场的静态应力水平。通常对从同一样品中获得的三个试样进行测试,每个试样都受到不同的围压。在土壤完全饱和状态下,每次试验的剪切强度都是一样的,称为“不排水的剪切强度 ” 。...
采用不同浓度RC溶液制备泡沫,立即将泡沫转移到量筒中,用流变仪的同心圆管在85℃和7.34s-1的恒剪切速率下测定泡沫的表观黏度、弹性模量G′和黏性模量G″。测量G′和G″时,选择1%的应变幅度和10rad·s-1的角频率。进一步通过振荡剪切振荡流变实验,利用流变仪的平板(d=42.915mm)在距样品板0.1mm处研究了剪切条件下泡沫的稳定性和再生。...
T 41498-2022纤维增强塑料复合材料 用剪切框测定面内剪切应力/剪切应变响应和剪切模量的试验方法2022/11/1166GB/T 41488-2022塑料 预浸料 术语定义和命名符号2022/11/1167GB/T 22264.1-2022安装式数字显示电测量仪表 第1部分:定义和通用要求2022/11/1168GB/T 20721-2022自动导引车 通用技术条件2022/11/1169GB...
/T 41496-2022铁合金 交货批水分的测定 重量法2022/11/1117GB/T 41497-2022钒铁 钒、硅、磷、锰、铝、铁含量的测定 波长色散X射线荧光光谱法2022/11/1118GB/T 41498-2022纤维增强塑料复合材料 用剪切框测定面内剪切应力/剪切应变响应和剪切模量的试验方法2022/11/1119GB/T 41499-2022废弃催化剂 分类2022/11/1120GB...
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号