Aluminate Cement Aluminate cement, product code as CA, also known as high alumina cement, is made from bauxite or limestone through melting or sintering. It is a hydraulic binder which mainly contains fine monocalcium aluminate and dicalcium aluminate. If necessary, it is also possible to add an appropriate amount of α-Al2O3 powder in grinding cement.. read more →
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 →
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 →