On April 25, the Standards Committee of China Materials and Testing Group organized famous experts in the domestic construction industry to review and pass the "Passive Low Energy Building" drafted by Beijing Kangju Certification Center and Greenburg Green Construction Technology Co., Ltd. in Jinan Fully assembled molded polystyrene board without demolition formwork reinforced concrete shear wall technical specification "standard.
The carbon emissions in the construction sector account for a large proportion of my country's total carbon emissions. In 2020, the total carbon emissions of construction and construction in the country will account for 50.9% of the total carbon emissions in the country. Carbon reduction in the construction field has become a key part of my country's goal of reaching carbon peak and carbon neutrality. Using molded polystyrene formwork without dismantling can save more than 55% of concrete, more than 33% of steel bars, and more than 95% of wood. Comprehensive savings Labor is about 50% or more. During the use of passive buildings, renewable energy can be fully utilized to reduce traditional energy consumption, building energy savings of more than 90%, and even zero or positive energy consumption.
According to experts, the fire performance level of the molded polystyrene free formwork is higher than the national building fire protection standard, reaching the quasi-safe ZA1 level. The integration of thermal insulation structure is realized, and the insulation board and concrete are connected together through the construction of cast-in-place concrete, which completely solves the problem of falling off of the traditional external wall insulation board. The implementation of this standard is of great significance to the large-scale promotion and application of passive buildings in the construction of houses in our country. (Liu Ruilin)
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