High strength cement and production method thereof

Abstract

The invention provides a high-strength cement and a production method thereof. Raw materials of the high-strength cement comprise 10-20 parts of Portland cement, 10-30 parts of carbide slurry, 10-20 parts of lime mud, 20-25 parts of mine mud, 25-35 parts of red mud, 5-11 parts of diatomaceous earth, 5-25 parts of fly ash, 1-3 parts of pyrite slag powder, 1-5 parts of polypropylene fibers, 2-6 parts of a naphthalene series water reducer, 11-14 parts of desulfurized gypsum, 5-7 parts of dicyandiamide residues, 4-5 parts of metal magnesium reduction powder, 10-20 parts of quartz sands, 15-30 parts of quicklime, 12-30 parts of a stone breaker, 2-6 parts an inhibitor and 5-15 parts of a water reducer. The cement has the high-efficiency waterproofing, moisture proofing, expanding, crack preventing and permeation preventing functions, and is worth promoting and applying.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength cement and a preparation method thereof. Background technique [0002] During the project, the basements, roofs, roads and bridges of many buildings did not reach the designed service life, and some projects were seriously damaged after only a few years of use and had to be repaired. The main reason is that the current waterproof materials and cement plus The agent generally contains too much chlorine and potassium ions. When it is added to the cement, it reacts with the active silica in the concrete to form an alkali silicate gel and cause the concrete to expand and crack. This is the common alkali-aggregate reaction in engineering. At the same time, the corrosion of steel bars is accelerated, resulting in cracking and water seepage of building materials. [0003] The use of industrial waste residues to produce cement not only conforms to the concept ...

AI Technical Summary

Problems solved by technology

[0002] During the project, the basements, roofs, roads and bridges of many buildings did not reach the designed service life, and some projects were seriously damaged after only a few years of use and had to be repaired. The main reason is that the current waterproof materials and cement plus The agent generally contains too much chlorine and potassium ions. When it is added to the cement, it reacts with the active silica in the concrete to form an alkali silicate gel and cause the concrete to expand and crack. This is the common alkali-aggregate reaction in engineering. At the same time, it accelerates the corrosion of steel bars, resulting in cracking and water seepage of building materials.

[0003] The use of industrial waste residues to produce cement not only conforms to the concept of protecting the environment and reducing pollution, but also has positive social effects of turning waste into treasure, reducing industrial waste disposal and production costs. At present, some cement companies have successfully used industrial waste residues to produce cement. Cement, however, it is not difficult to see that there are mainly the following deficiencies in the existing public technology of utilizing industrial waste production: the quality of cement is not stable, the strength is low, and it cannot meet the requirements of large-scale construction projects.