Intelligent concrete being good in durability

Abstract

The invention discloses intelligent concrete being good in durability, which includes, by weight, 27-38 parts of Portland cement, 8.5-9.5 parts of silica fume, 0-8 parts of quartz sand, 39-41 parts of fine sand, 5.5-8 parts of metal fibers, 0.5-1 part of a high-effective water reducer and 5.5-8 parts of water. In the invention, on the basis of the original components of the present concrete, an intelligent component is composited so that the concrete becomes a multifunctional material having the self-sensing, memory, self-adapting, self-repairing and ultra-strong properties. The concrete achieves great development of engineering materials, is ultra-high in durability and mechanical performances, and can effectively defense earthquake, earth penetration bombs and accurate strike of missiles, The concrete is good in durability, approximates steel structures in mechanical performance after proper bar reinforcement, has excellent anti-wear and explosion resistant performances, is suitable for high-span bridges, explosion resistant structures and thin wall structures, and also can be used in high-abrasion and high-corrosion environments.

Description

technical field [0001] The invention relates to a concrete building material, in particular to an intelligent concrete with good durability. Background technique [0002] With the development of modern buildings to large spans and high-rises, in order to reduce the structural section, reduce the structural weight, and improve the performance of thermal insulation, light, high-strength, multi-functional, durable, disaster-resistant, and sustainable building materials have become civil engineering materials. It is an important research topic in the world and one of the important development directions of modern concrete technology. [0003] In addition, due to the long-term use of concrete structures and the influence of the surrounding complex environment, micro-cracks and local damage will inevitably occur. The light ones will reduce the service life of the structure, and the severe ones will endanger the safety of the structure. Over the years, people have studied and impr...

AI Technical Summary

Problems solved by technology

However, in the actual concrete engineering structure, there are many tiny cracks, such as micro-cracks in the matrix, etc. These microscopic damages may not be detected due to the limitation of detection technology.

Therefore, it becomes very difficult or even impossible to repair these undetectable cracks and damages, but if these cracks or damages cannot be repaired in a timely and effective manner, it will not only affect the normal performance of the structure and shorten the service life. life, and may cause macroscopic cracks and cause brittle fracture of the structure, resulting in serious catastrophic accidents