Baking-free and steaming-free brick and building block and preparation method thereof

Abstract

The invention discloses a baking-free and steaming-free brick, a baking-free and steaming-free building block and a preparation method thereof. The brick and the building block comprise the following components in percentage by weight: 5 to 40 percent of calcined magnesia, 1 to 25 percent of industrial waste slag, 4 to 35 percent of conditioner solution, 0 to 30 percent of reinforcing and thickening agent, 5 to 85 percent of aggregate, 0.01 to 8 percent of waterproof admixture and 0 to 0.5 percent of water reducing agent. The brick and the building block have the advantages of normal-temperature curing reaction, quick condensation and hardening, high strength, heat insulation, sound insulation, flame resistance and freezing resistance; the water resistance is improved, the service life of the product is prolonged, and meanwhile, the defects of moisture absorption, halogenation and scumming of the product are overcome; recycle and comprehensive utilization of solid wastes are promoted, and environmental pollution can be reduced; and the volume weight of the product can be lightened, the transportation energy consumption can be reduced, the thermal resistance can be improved, and the heat insulation performance can be improved. The brick and the building block have no toxicity, no smell, no radioactivity, no harm to human body and no environmental pollution, and have the characteristics of cleanliness and environmental friendliness; and clay is not adopted so that the tilled land resources can be effectively protected.

Description

technical field [0001] The invention relates to a building material, in particular to a non-burning and non-steaming brick and building block and a preparation method thereof. Background technique [0002] For thousands of years, clay bricks have been the main building block in our country. Clay bricks must be sintered before they can be used, and in the process of making sintered clay bricks, a large area of ​​cultivated land is destroyed, a large amount of energy is consumed, and a large amount of CO2 and SO2 are emitted, which aggravates the greenhouse effect and environmental pollution. In order to save resources and protect the environment, the country has long ago decided to ban the use of solid clay bricks in domestic large and medium-sized cities; by the end of 2010, all cities and towns across the country will completely ban the use of solid clay bricks. [0003] In Chinese patent application CN101462865A "clay non-fired type insulation brick and its preparation me...

AI Technical Summary

Problems solved by technology

However, in the aforementioned patented products, when magnesium oxide and magnesium chloride solution were used as cementing materials, the hydration product after the reaction of magnesium oxide and magnesium chloride solution did not have the shortcoming of water resistance, and other components in the above-mentioned patented product were hydrated by this. None of the products have substantial protection against water, thus limiting the scope of application of the products, and during long-term use, due to the erosion of the hydration products by the humid atmosphere and rain, the erosion products will also cause the products to absorb moisture and return to brine And frost, eventually lead to product pulverization, loss of strength, loss of use value, affecting the service life of buildings, it is difficult to popularize and apply nationwide

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