论文部分内容阅读
随着建筑行业的发展,混凝土已经成为结构工程中重要的建筑材料,在工程建设中发挥着极其重要的作用。由于各种原因,硬化后的混凝土中存在着一定量的微孔隙和裂缝,这是由混凝土的自身特点决定的。按裂缝对混凝土的危害程度区分,可以分为无害裂缝和有害裂缝。无害裂缝是在混凝土凝结硬化过程中受其自身材料组成的性质影响产生的裂缝,属于细微裂缝,对混凝土结构安全、耐久性和使用功能均无显著影响;有害裂缝则是指混凝土受自身因素或外界环境的影响产生的最终肉眼可见的宏观裂缝,并对混凝土的使用功能、结构安全和耐久性产生影响的裂缝。本文主要介绍混凝土有害裂缝的种类及相应的控制措施,以达到控制混凝土裂缝,保证混凝土结构安全使用的目的。
With the development of the construction industry, concrete has become an important building material in structural engineering and plays an extremely important role in engineering construction. Due to various reasons, a certain amount of micro-pores and cracks exist in the hardened concrete, which is determined by the concrete’s own characteristics. Divided by the degree of damage to the concrete cracks can be divided into harmless cracks and harmful cracks. Harmless cracks are the cracks caused by the nature of their own materials in the process of setting and hardening of concrete. They are fine cracks and have no significant effect on the safety, durability and serviceability of concrete structures. Harmful cracks refer to concrete affected by its own factors Or the impact of the external environment resulting in the final macroscopic macroscopic cracks and cracks that affect the use of concrete, structural safety and durability. This paper introduces the types of harmful concrete cracks and the corresponding control measures in order to achieve control of concrete cracks and ensure the safe use of concrete structures.