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Polycarboxylic acid series high performance water reducer (shrinkage-reducing type)

The product is a water-soluble composite water reducer with carboxylic acid-based substances grafted with high molecular polymers as the main body. It has the features of superplasticity, high slump retention, high enhancement and low shrinkage, and can be used to prepare concrete with different strength grades. It is especially applicable for preparing high strength, high fluidity, self-compacting, high durability and high performance concrete. The product performance reaches the standards of GB8076-2008, JG/T233-2007, TB10424-2018 and JT769-2009.

Polycarboxylic acid series high performance water reducer (early strength type)

The product is a water-soluble composite water reducer with carboxylic acid-based substances grafted with high molecular polymers as the main body. It has the features of superplasticity, high slump retention, high enhancement and low shrinkage, and can be used to prepare concrete with different strength grades. It is especially applicable for preparing high strength, high fluidity, self-compacting, high durability and high performance concrete. The product performance reaches the standards of GB8076-2008, JG/T233-2007, TB10424-2018 and JT769-2009.

Polycarboxylic acid series high performance water reducer (retarding type)

The product is a water-soluble composite water reducer with carboxylic acid-based substances grafted with high molecular polymers as the main body. It has the features of superplasticity, high slump retention, high enhancement and low shrinkage, and can be used to prepare concrete with different strength grades. It is especially applicable for preparing high strength, high fluidity, self-compacting, high durability and high performance concrete. The product performance reaches the standards of GB8076-2008, JG/T233-2007, TB10424-2018 and JT769-2009.

Polycarboxylic acid series high performance water reducer (standard type)

The product is a water-soluble composite water reducer with carboxylic acid-based substances grafted with high molecular polymers as the main body. It has the features of superplasticity, high slump retention, high enhancement and low shrinkage, and can be used to prepare concrete with different strength grades. It is especially applicable for preparing high strength, high fluidity, self-compacting, high durability and high performance concrete. The product performance reaches the standards of GB8076-2008, JG/T233-2007, TB10424-2018 and JT769-2009.

Mortar grouting material

This product is a bearing mortar grouting material made of special cementing materials, high-efficiency plasticizers, micro-expansive materials and polymer materials. The quality of the product meets the standards of JC/T986-2005 and TB10424-2018.

Waterproofing agent

This product is a new generation of multifunctional composite waterproofing agent, which is composed of many organic materials. It has the functions of reducing water, strengthening, improving density, improving concrete pore structure, improving permeability and compensating shrinkage, so as to achieve the effects of permanent crack resistance, impermeability and waterproofing of mortar and concrete. The product quality reaches JC474 first-class standard.

Compound preservative

This product is a concrete preservative made of polymer organic compounds and various inorganic materials. It can inhibit the corrosion of concrete by harmful substances such as acid, alkali and chlorine salts and harmful gas, and improve the corrosion resistance of concrete structures in various corrosive salt environments. The quality can meet the requirements of JC/T1011-2006 standard.

Grouting agent

This product is a bearing mortar grouting material made of special cementing materials, high-efficiency plasticizers, micro-expansive materials and polymer materials. The quality of the product meets the standards of JC/T986-2005 and TB10424-2018.

Expanding agent

HEA-1 concrete expansion agent, which is made of special sulphoaluminate and natural anhydrite, has good expansion performance. The shrinkage compensating concrete prepared with this product can realize the self-waterproofing of concrete structure and is an ideal material to solve the problem of crack prevention and impermeability of buildings. The product quality reaches the GB23439 standard.

Tackifier

The product is a water-soluble composite water reducer with carboxylic acid-based substances grafted with high molecular polymers as the main body. It has the features of superplasticity, high slump retention, high enhancement and low shrinkage, and can be used to prepare concrete with different strength grades. It is especially applicable for preparing shotcrete and high strength, high fluidity, self-compacting, high durability and high performance concrete. The product performance reaches the standards of GB8076-2008, JG/T233-2007, TB10424-2010 and JT769-2009.

Concrete admixture quality inspection

A, admixture product quality inspection, the determination of an admixture composition, performance and quality stability, to determine whether it reaches the specified physical and chemical performance indicators. Such as appearance, effective substance content, solubility, specific gravity, pH value of aqueous solution, chloride ion content, sulfate content, sugar content, foaming, surface tension and whether there is rust on the reinforcement.

The performance role of concrete admixtures

Initially the use of admixtures, only to save cement, with the development of construction technology, admixtures have become the main measures to improve the performance of concrete.

Types of antifreeze and their mechanism of action

Antifreeze is an admixture that can make concrete harden under negative temperature and achieve sufficient antifreeze strength within a specified time. China's commonly used antifreeze agent is a multi-component composite, its main components are antifreeze components, water-reducing components, air-entraining components, early strength components.

Commonly used cement and admixtures for drilling

In drilling construction, cement is needed to reinforce the orifice pipe and water stop casing, and also often encounter complex problems such as collapse, leakage, and broken off blocks of the formation, which require cement for wall protection and plugging. However, due to the low early strength of ordinary cement, setting time is too long, the slurry liquidity is poor, it is necessary to use cement additives to improve and adjust a variety of cement properties, the use of cement additives to improve and adjust the performance of certain cements is an effective way. For example, to improve the early strength is appropriate to use early strength admixture; to shorten the setting time, then use rapid setting agent; if you need to improve the fluidity, to use drag reducing agent and so on.

The influence of concrete admixture amount and mixing process

The optimal amount of concrete admixture admixture should be determined by the recommended amount, use requirements, construction conditions, raw materials and other factors through testing. Use requirements refer to the requirements of the project, such as early strength or slow setting, saving cement or improving performance, etc.

For the use of cement additives to be reasonable

Cement additive is an important guarantee for cement manufacturers to produce cement because it helps grinding, improves production efficiency, enhances cement performance and reduces production cost. The main principle is to increase the output of the mill, make the raw materials fully ground, enhance the strength of the finished cement, increase the amount of mixed materials, and reduce the cost of cement production through the effectiveness of the additives themselves. Cement additives certainly have their good effects, but companies can not blindly use, according to their own actual situation (such as cement ingredients, mill models, etc.) for cement additives to make appropriate adjustments in order to make the best performance of cement additives.

Development trend of cement additives

With the continuous development of society, the process technology is also improving, and the requirements of the cement industry are getting higher and higher. Cement additives have the advantages of saving energy, reducing costs, and improving the quality of cement products and their corona, and have been commonly used at home and abroad.

How to use concrete admixtures correctly

At present, the variety of additives, the role of different in the concrete, including water reducing agent dosage is the largest, occupying a major position. The following is a personal experience of the application of water reducing agent.

Concrete admixtures so many, you are using the right?

Water reducing agent can maintain the concrete slump under the condition of unchanged, reduce the amount of mixing water to improve the fluidity of the concrete mix, or reduce the amount of cement per unit, saving cement. According to the water reducing agent water reducing capacity is divided into ordinary water reducing agent (also known as plasticizer, water reduction rate of not less than 8% ), high efficiency water reducing agent (also known as super plasticizer, water reduction rate of not less than 14% ) and high performance water reducing agent (water reduction rate of not less than 25%).

Chemical admixtures for concrete

The so-called concrete chemical admixture, is mixed in the process of mixing concrete (can be mixed with the mixing water at the same time, can also be mixed with water lag) to improve the performance of concrete substances. The amount of admixture is generally not more than 5% of the mass of cement.