Cementitious material for construction

Abstract

The invention relates to a cementing material for building, which is stirred with water and hardened to form a building material. The cementing material comprises powder and exciting agent, wherein the powder contains a silicate product which contains 20 to 35 percent of aluminum and 0.01 to 45 percent of calcium. The exciting agent contains an alkali compound with alkali metal element ions, wherein when the powder is stirred with the exciting agent and the water, the alkali metal element ions and the silicate product react to form a colloid structure, and the colloid structure is hardened to form the building material which has a compressive strength of between 1,100 and 11,000psi.

Description

Technical field: [0001] The invention relates to a cementing material, especially a building cementing material with a proper ratio between the reacting powder and the activator, which can reach the high compressive strength of traditional cement. Background technique: [0002] Cement is widely used in the construction industry as a cementing material for reinforced concrete structures. Cement is a powdery hydraulic cementitious material. It is mixed with an appropriate amount of water to form a plastic slurry, which can firmly bond sand, stone and other granular or fiber materials together. It is an important basic material for the construction industry. . As shown in Figure 1, the production of general cement is based on calcium carbonate minerals such as clay, silica sand and limestone, which are mixed and ground in an appropriate proportion, then sintered at high temperature in a rotary kiln to become clinker, and then ground with appropriate amount of gypsum. become. ...

AI Technical Summary

Problems solved by technology

[0003] However, the cement manufacturing process must use high temperature (greater than 1300 degrees Celsius) sintering, which not only consumes a lot of energy and resources, but also emits carbon dioxide waste gas during the production process, thus aggravating the global greenhouse effect; in addition, due to limestone ( CaCO 3 ) and other natural resources are also limited in quantity, therefore, finding emerging alternative materials has become an important issue

Although some scholars have discovered that aluminum-silicon reactants and strong alkali solutions can form hard amorphous aluminosilicate colloids, how to achieve the compressive strength of traditional cement and make use of it is still unresolved; Conducive to the sustainable operation and development of industry and environment

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