论文部分内容阅读
随着我国经济的发展,社会整体建设也在加快,在社会建设中的一个重要体现就是对高楼大厦或道路交通等基础设施的建设,在所有的建设中都离不开一个重要的材料——混凝土,这是目前世界上建筑使用最大两的材料。砂是制造混凝土的主要材料,砂有两种即天然的和机制的,在我国砂石的每年产量为二十五亿以上,由于受制于自然原因,天然砂已经很难满足生产的需要,但是混凝土的使用量却在不断的增加,过分的天然砂开采也对环境造成了严重的破坏,在这种现实下,机制砂的出现成为必然并逐渐占据主要地位。本文将对机制砂在混凝土中的应用展开详细论述,以求把相关问题解释清楚。
With the economic development in our country, the overall social construction is also accelerating. An important manifestation of social construction is the construction of infrastructures such as high-rise buildings or road traffic. In all its construction, an important material can not be obtained - Concrete, which is currently the world’s largest building materials used two. Sand is the main material for the manufacture of concrete. There are two types of sand that are natural and mechanical. The annual output of sand and gravel in China is more than 2.5 billion. Due to natural reasons, natural sand can hardly meet the production needs. However, The use of concrete is constantly increasing, too much natural sand mining also caused serious damage to the environment, in this reality, the emergence of the mechanism of sand has become inevitable and gradually occupy the main position. In this paper, the application of mechanism sand in concrete will be discussed in detail in order to clarify the related problems.