A kind of high-strength self-toughening building cement and its preparation method

Abstract

The invention aims at providing high-strength self-toughened building cement and a preparation method thereof. Under the condition that compressive strength and flexural strength of a concrete member are not influenced, the problem that sulphoaluminate and iron aluminate high-strength cement can be extremely easily coagulated can be effectively solved. According to the technical scheme, sulphoalumiante cement, iron aluminate cement, chlorinated paraffin and EVA wax are dispersed and uniformly ground and then are combined with wood fibers subjected to soaking and drying treatment by virtue of fly ash, tailings, phosphorus slag, steel slag and calcium chloride liquid, so that the high-strength self-toughened building cement is obtained. The high-strength self-toughened building cement provided by the invention is not only high in strength but also has self toughness effect, the defect that high-strength concrete can be shrunk easily can be obviously overcome, strength of cement gel is excited to the utmost extent, and the high-strength self-toughened building cement has great significance on realization of cement reduction.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a high-strength self-toughening building cement. Background technique [0002] New building materials are a new generation of upgraded building materials produced on the basis of traditional building materials, mainly including new wall materials, thermal insulation materials, waterproof sealing materials and decoration materials. With the advent of the low-carbon era, under the background of the country's promotion of energy saving and consumption reduction, transformation and development, green, low-carbon, energy saving and environmental protection have become the unavoidable mission of new building materials. For this reason, new building materials with the goals of green environmental protection, waste utilization, heat insulation, heat preservation, fire prevention, light weight, high strength, replacement, low cost, and soil saving have gained huge new opportuni...

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Problems solved by technology

[0006] Aiming at the shortcomings of existing high-strength cements such as sulfoaluminate cement and iron-aluminate cement, which are easy to be cemented in advance, difficult to pump, and have a large shrinkage rate, the present invention proposes a high-strength self-toughening building cement and a preparation method, which significantly improves the The defect of easy shrinkage of high-strength concrete can maximize the strength of cement gel, which is of great significance to realize the reduction of cement

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