17 Apr 2019
April 17, 2019

The advantage of dry-mixed mortar

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Dry-mixed mortar or dry mortar is made of cement, sand, mineral and functional additives, mixing together proportionally. It is often in powder or granule form pre-mixed in special factory and transported to construction site. After stirring with adequate amount of water, it can be used directly. There are usually two kinds of dry mortars- normal type.. read more →

The Water Retention Functions and Principles of Hydroxypropyl Methylcellulose The HPMC mainly plays a role in water retention and thickening, able to effectively improve the bond force and sag resistance of slurry. Air temperature, humidity, wind pressure and other factors will affect the evaporation rate of water in cement mortar and gypsum-based products. Therefore, in.. read more →

The mechanism by which concrete shrinkage cracking occurs is as follows. In setting and hardening of concrete, the volume will change and the set cement will generate heat of hydration. Due to different rates of temperature increases and decreases on the surface or in the inner part of components, shrinkage deformation of concrete will be.. read more →

29 Jan 2019
January 29, 2019

Re-dispersible polymer powder

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Redispersible polymer powder (short for RDP) is a polymer powder with redispersible property. It is made from synthetic resin emulsion by adding other substances and then dried by spray. So it mainly contains polymer resin, additives, protective colloid, anti – caking agent. The manufacturing processes can be divided into two procedures-The first step is to.. read more →

At the moment, the main Redispersible Polymer Powder in the market are: VAC/E, E/VC/VL, V AC/E/VeoVa, V/AC/V eo Va, A/S, V AC/A/V eo Va, PV AC, SBR, other binary and ternary copolymer rubber powders, other formula rubber powders added with functional additives, and other formula rubber powders with functional additives and more than one type.. read more →

26 Dec 2018
December 26, 2018

Aggregate for dry mix mortar

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Aggregate is one of the most important constituent materials of dry-mixed mortar. It mainly acts as skeleton and reduces the volume change caused by hygroexpansion during setting and hardening, and also as an inexpensive filler for cementitious materials. There are natural and artificial aggregates depending on its source- natural kind such as gravel, pebbles, pumice,.. read more →

26 Dec 2018
December 26, 2018

Lime

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Lime is the first nonhydraulic cementitious material used in construction. Due to its rich raw materials, simple production equipment and low-cost, it is still widely used in construction projects. The raw material for lime is mainly rock which mainly contains calcium carbonate. The most commonly used raw material is limestone, in addition to dolomite and.. read more →

26 Dec 2018
December 26, 2018

Gypsum

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Gypsum is an inorganic air-hardening cementitious material, mainly consisting of calcium sulphate. Using gypsum materials and relevant products have great significance for saving building materials resources and improving the technical level of building materials. Production cost, Raw material consumption, construction technology requirements and equipment costs are low and production efficiency is high. Gypsum materials have.. read more →

25 Dec 2018
December 25, 2018

Starch ether

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Starch is one of the most prolific natural polymers, and is composed of amylose and amylopectin. Amylopectin molecules are much larger than amylase. Starch ethers are chemically modified from starch. Starch ether is one of the most cost-effective raw materials for the dry mortar industry. Its main function is adjusting the performance of the mortar.. read more →

30 Nov 2018
November 30, 2018

Decorative cement

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Decorative cement   Decorative cement, including white cement and colored cement, is mainly used for architectural decoration projects and can be made into color mortar, or prepare a variety of white or colored concrete. Compared with materials, it has many advantages like easy to apply and shape, low cost, good environmental protection and durability. White.. read more →