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来源：百度知道 编辑：UC知道 时间：2024/05/28 08:48:42
Atterberg Limits
We know that the particles of the clay fraction may consist of finely ground rock flour or clay minerals. Because of their crystal structure and shape, clay minerals have strong surface forces that are predominant over the gravity forces. The surface forces attract water molecules to the clay particles. Those closest to the clay particles are tightly held to the clay and their properties are quite different from those of ordinary water. This is called adsorbed water and is considered to give clays their cohesive and plastic properties. Very little water is adsorbed by rock flour, which is nonplastic. Thus we see that the amount of fines present in a soil is a poor indicator of what the soil behavior may be like. Two clay soils have very different properties if one is composed primarily of quartz and the other of clay minerals such as illite. Furthermore, there exist several kinds of clay minerals whose properties and surface forces differ over a wide range. The At
We know that the particles of the clay fraction may consist of finely ground rock flour or clay minerals. Because of their crystal structure and shape, clay minerals have strong surface forces that are predominant over the gravity forces. The surface forces attract water molecules to the clay particles. Those closest to the clay particles are tightly held to the clay and their properties are quite different from those of ordinary water. This is called adsorbed water and is considered to give clays their cohesive and plastic properties. Very little water is adsorbed by rock flour, which is nonplastic. Thus we see that the amount of fines present in a soil is a poor indicator of what the soil behavior may be like. Two clay soils have very different properties if one is composed primarily of quartz and the other of clay minerals such as illite. Furthermore, there exist several kinds of clay minerals whose properties and surface forces differ over a wide range. The At
阿特伯格极限
我们知道，粒子的粘土分数可能包括细磨面粉岩石或粘土矿物。由于其晶体结构和形状，粘土矿物有强烈的表面势力占优势超过了重力的力量。表面上的力量吸引水分子向粘土粒子。那些最接近其粘土颗粒紧密地举行，以粘土及性能有很大的不同，从那些普通的水。这就是所谓吸附的水和被认为是给粘土其凝聚力和塑料性能。很少的水是吸附岩粉，这是nonplastic 。因此，我们看到，罚款数额，目前在土是一个贫穷的指标是什么土壤行为，可想。两个粘土土壤有非常不同的特性，如果一个组成主要是石英和其他粘土矿物，如伊利。此外，存在着若干种粘土矿物，其性能和表面力差别较广泛。该阿特伯格限定设计，以作为一项指标的财产粘土分数。
一开始是在一个非常低的水含量，粘土土壤，首先是一个稳健的，就成为塑料由于水分含量增加。字塑料是指以能力的土壤被模塑成各种形状，没有分手。各个国家的坚实，塑料和液体反映刚度，或一致性，对土壤。该阿特伯格极限是水分含量在土壤一致性变化，从一个国家到另一个国家。他们被称为收缩，塑料和液体的限制，分别为（图2.2 ） 。
该液限（ 11 ） ，是水的含量，其中土壤对双方的一个槽流向后一并菜含有泥土已跌至通过距离1厘米的25倍。尺寸的土壤八槽和菜都显示在图2.3 。据双双（ 1932 ） ，这种检测方法类似于一个强度试验，并在液限土有实力的大约1 g/cm2 。塑性极限（特等）的定义为水分含量在其中土壤一旦崩溃时，它是轧下降至一个线程1 / 8空中直径。不同之间的液体和塑限称为塑性指数（知识产权） 。