Cellulose ethers influence on water retention and consistency in cement-based mortars

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 … Continue reading

November 16, 2018 SIDLEYchem News

The Development History of Redispersible Powder

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 … Continue reading

November 10, 2018 SIDLEYchem News

Basic Concept of Redispersible Powder

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 … Continue reading

November 10, 2018 SIDLEYchem News

Application of Cellulose Ether in Dry Mortar

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 … Continue reading

October 29, 2018 SIDLEYchem News

Fineness of Cellulose Ether

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 … Continue reading

October 29, 2018 SIDLEYchem News

Viscosity of Cellulose Ether

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 … Continue reading

October 27, 2018 SIDLEYchem News

Water Retention of Cellulose Ether

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 … Continue reading

October 27, 2018 SIDLEYchem News

The Superiority of Dry Mortar

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, … Continue reading

October 27, 2018 SIDLEYchem News

Development Trend of Drymix Powder Mortar in China

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 … Continue reading

October 22, 2018 SIDLEYchem News

Advantages of Drymix Mortar

Advantages of Drymix Mortar Drymix powder mortar as a substitute for traditional mortar has its own advantages. Construction quality is easy to guarantee Different applications of mortar such as masonry mortar, plastering mortar, ground mortar, block special mortar, etc has different requirements for anti-shrinkage, crack resistance, heat preservation, moisture resistance of the materials, and … Continue reading

October 19, 2018 SIDLEYchem News

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