Inorganic heat insulation load-bearing concrete

Abstract

The invention discloses an inorganic heat insulation load-bearing concrete, belonging to the technical field of heat preservation load-bearing concrete. The invention aims at solving the problem of providing a concrete which not only can meet the requirements of stress performance of structural components of buildings, but also has good heat preservation property. The adopted scheme comprises: the concrete comprises the components with mix proportion by weight (kg/m<3>): the ratio among composite lightweight doped-aggregate, cement, sand, carpolite, ceramsite, pulverized fuel ash, water and admixture is (6-225): (200-800): (300-700): (500-1600): (150-650): (10-600): (80-400): (0.1-200); wherein the composite lightweight doped-aggregate is one or mixture of more in vitrified micro-bead, vermiculite, expanded perlite and modified expanded perlite, and has the density of (50-180)kg/m<3>. Therefore, the load-bearing concrete can be widely applied to the field of building technology.

Description

technical field [0001] The inorganic thermal insulation and load-bearing concrete of the invention belongs to the technical field of thermal insulation and load-bearing concrete. Background technique [0002] As the most important part of building energy consumption in operation, the building envelope structure constitutes a breakthrough to solve the technical problems of building thermal insulation and energy saving. Over the years, most of the researches on building thermal insulation and energy saving technologies at home and abroad have focused on the research and development of thermal insulation building materials attached to the outer or inner surfaces of building structures, especially the development and use of organic thermal insulation materials. Building thermal insulation and energy saving is a systematic project, which involves the selection of building materials, the selection of design and construction schemes, and environmental protection. In today's world,...

AI Technical Summary

Problems solved by technology

However, as the main material of the building, concrete has poor thermal insulation performance (its thermal conductivity is 1.70-1.80W / (m K)), so in order to ensure the internal temperature of the building, it is necessary to add a Insulation layer, compared with the insulation materials used in the inner and outer insulation layers, the thermal conductivity of concrete is extremely high, so the thickness of the inner and outer insulation layers must be very thick to ensure the temperature inside the building, which not only increases the cost, but also is not conducive to structural damage. Force and construction and use safety

[0003] Insulation engineering is a system engineering. The main material for building buildings or structures is concrete. Therefore, starting from the methods and principles of system science, research and develop a kind of physical and mechanical properties that not only have the physical and mechanical properties of general concrete, but also have thermal insulation properties. , Environmental protection and high-efficiency ecological building materials are very necessary; the main structure of general thermal insulation projects and the thermal insulation layer are cracked and damaged due to weak combination, a series of problems such as quality, safety accidents, fire and poor durability of organic thermal insulation materials; existing buildings The concrete used in large quantities in buildings only has the technical defect of forming structural components of buildings and meeting certain mechanical performance requirements without thermal insulation performance.