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 … Continue reading
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 … Continue reading
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 … Continue reading
With great honor we had Nippon Paper Group（日本製紙グループ www.nipponpapergroup.com ） visited our plant on February 27th, 2019. The sales manager 嶌田裕治 accompanied by three technicians visited our Sodium CarboxymethylCellulose plant and showed admiration to our manufacturing technique. CMC is one of the strong items of Sidleychem. We can supply CMC with different grades and applications, … Continue reading
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 … Continue reading
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 … Continue reading
Sidleychem has visited China Coating Exhibition from Dec 4th to 6th 2018, and met customers from Southeast Asian such as Pakistan, Vietnam, India during the exhibition. They are very satisfied with our Hydroxyethy Cellulose(HEC) and Sodium CarboxymethylCellulose (CMC). Especially HEC can replace Natrosol 250HBR, and can meet customers’ requirements in terms of biostability. Recommended model: … Continue reading
SidleyChem will participate in the 2019 Brazilian Coatings Exhibition (Abrafati 2019). Exhibition Date: October 1-3, 2019 Brazil – Sao Paulo Booth No.: 237 Sidley Chemical is specialized in the production, development and sales of coating/construction chemicals. We are dedicated to provide the professional solution and service to our customers in global market. Our main products … Continue reading
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, … Continue reading
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 … Continue reading