Novel cement with high breakage resistance value and preparation method of novel cement

Abstract

The invention discloses novel cement with high breakage resistance value and a preparation method of the novel cement, and belongs to the technical field of production of cement. According to the novel cement with the high breakage resistance value and the preparation method of the novel cement, the cement comprises the following components in percentages by weight: 50% of limestone, 5% of a clawraw material, 3.5-30% of flyash, 9-30% of a non-active mixing material, 3.5-6% of gypsum, 2% of water-soluble resin and 1.5-30% of an active mixing material. The preparation method comprises the following steps: heating and drying raw materials, evaporating water of the raw materials, heating and dehydrating the raw materials, decomposing carbonate, preparing clinker, solidifying the clinker and grinding the clinker. The breakage resistance value of the cement can be changed, the breaking strength of the cement is greatly enhanced, thus, the cement has certain resistance on stress breakage dueto strength fatigue, creep breakage at a high temperature and breakage affected by an environment acting force, and the breakage resistance of a concrete building blended with cement is improved.

Description

technical field [0001] The invention relates to the technical field of cement production, and more specifically relates to a novel cement with high fracture resistance value and a preparation method thereof. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. It can be mixed with water to form a slurry. It can be hardened in the air or better hardened in water, and can firmly bind sand, stone and other materials together. Early lime and The mixture of volcanic ash is very similar to the modern lime pozzolanic cement. It is used to bond the concrete made of crushed stone. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water. It has been used as an important glue for a long time. Concrete material, widely used in civil construction, water conservancy, national defense and other projects. General-purpose cement mainly refers to: the six types of cement specified in GB175-2007, namely Po...

AI Technical Summary

Problems solved by technology

[0003] According to the size of the plastic deformation before the fracture, the fracture of the material can be divided into two categories: brittle fracture and ductile fracture. The existing cement has a large difference in the fracture resistance value depending on the material. According to international standards, the flexural strength is low, and it is easy to break under the influence of strength fatigue fracture, temperature expansion and contraction under temperature difference, and environmental force. The quality of cement is the most direct influence on the flexural strength of concrete buildings. Influencing factors, which mainly depend on the technical properties of the cement itself, such as calcification rate, shrinkage cracking, wear performance, etc.

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