30 Nov 2018
November 30, 2018

General purpose portland cement

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In Chinese GB 175-2007 Standard, general purpose portland cement is defined as hydraulic cementitious material made of Portland cement clinker and appropriate amount of gypsum and specified mixed materials. According to the variety and dosage of its mixed materials, it is divided into Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement and.. read more →

Cellulose ethers influence on water retention and consistency in cement-based mortars 1. Introduction Factory-made mortars have been mostly implemented as masonry renderings, fixing tiles, self-levelling floors and so on. When mortar is applied on substrate, water may be absorbed by the substrate. This phenomenon can induce insufficient hydration of cement, and thus decrease mechanical properties.. read more →

The Development History of Redispersible Powder   As early as more than 1000 years ago, humans had discovered that the use of natural resin or protein materials can significantly improve the durability of inorganic adhesive materials. For example, Zhaozhou Bridge in China is a good case. This experience has continued into the modern era, especially.. read more →

10 Nov 2018
November 10, 2018

Basic Concept of Redispersible Powder

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Basic Concept of Redispersible Powder   The Redispersible Powder is the main additive of dry powder ready-mixed mortar such as cement-based or gypsum-based. The Redispersible Powder is a polymer of vinyl acetate and ethyl ester which is spray-dried and gathered from the original 2μm to form spherical particles of 80-100μm. Since the surface of these.. read more →

Application of Cellulose Ether in Dry Mortar   In the dry mortar, cellulose ether plays the role of retaining water, thickening and improving construction performance. Good water retention performance ensures that the mortar will not be sanded, dusting and strength due to lack of water, cement hydration incompleted, thickening effect makes the structural strength of.. read more →

29 Oct 2018
October 29, 2018

Fineness of Cellulose Ether

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Fineness of Cellulose Ether   Fineness is also an important performance indicator for cellulose ether. The Hydroxypropyl Methylcellulose requirement for dry mortar is powder, low water content, and the fineness also requires 20%-60% of particle size to be less than 63um. Fineness affects the solubility of cellulose ether. The coarser Hydroxypropyl Methylcellulose is usually in.. read more →

27 Oct 2018
October 27, 2018

Viscosity of Cellulose Ether

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Viscosity of Cellulose Ether   Viscosity is an important parameter of Hydroxypropyl Methylcellulose performance. Different Hydroxypropyl Methylcellulose manufacturers use different methods and instruments to test the viscosity of Hydroxypropyl Methylcellulose currently. The main methods are Haake Rotovisko, Hoppler, Ubbelohde and Brookfield. For the same product, the viscosity has big differences by different test method, some.. read more →

27 Oct 2018
October 27, 2018

Water Retention of Cellulose Ether

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Water Retention of Cellulose Ether   Water retention is an important property of cellulose ether, and it is also a concern of many domestic drymix mortar manufacturers, especially those in the south area with high temperature. Factors that affects the water retention effect of the mortar include the amount of Hydroxypropyl Methylcellulose, the viscosity of.. read more →

27 Oct 2018
October 27, 2018

The Superiority of Dry Mortar

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The Superiority of Dry Mortar   As a substitute for traditional mortar, dry mortar has many advantages. Construction Quality is Easy to Guarantee Different kinds of mortars such as masonry mortar, plastering mortar, ground mortar, block special mortar, etc, have different requirements for special properties such as anti-shrinkage, crack resistance, heat preservation and moisture resistance,.. read more →

Development Trend of Drymix Powder Mortar in China   At the end of the 20th century, China began to introduce Drymix powder mortar technology from abroad, and combined with the source of domestic raw materials, adjusted the formulation of a variety of Drymix powder mortars for different purposes, and achieved results in application of the.. read more →