Starch ether is a polyacrylamide compound extracted from natural plants. It has the same chemical structure and similar properties as cellulose ether. Starch ether is mainly used in construction mortars. They can affect the consistency of mortars based on gypsum, cement, and lime and change mortars’ workability and sagging resistance. Starch ether is usually combined with non-modified and modified cellulose […]
Polyvinyl alcohol powder is a type of water-soluble film-forming adhesive substance. Its products are now widely used in some dry-mixed mortar products. It provides a relatively cheap adhesive material for powdery and paste putties. Adding Polyvinyl alcohol powder to dry-mixed mortar products like redispersible polymer powder increases its bonding strength, but its comprehensive performance is far from comparable […]
In dry-mixed mortar products, two cementitious material systems, cement and redispersible polymer powder are an ideal match. Combining the two in dry-mixed mortar products achieves significant synergistic effects. Any cementing material used alone can have unattainable properties that allow polymer-modified mortar to be used on various special occasions and have obvious advantages in quality control, construction operations, storage, and […]
Redispersible Polymer powder is usually white, but there are also a few other colors. Its main ingredients are as follows: Polymer resin: Located at the core of polymer powder particles, it is also the main component of Redispersible Polymer powder, such as ethylene vinyl acetate (EVA), polyacrylate (PAE), etc. Additives (internal): Play the role of modifying the resin. […]
There are two systems of cementitious materials, namely inorganic cementitious materials and organic cementitious materials. Inorganic cementitious materials such as cement can bond aggregates to form a rigid framework, while organic cementitious materials can endow the rigid framework with cohesion properties and dynamic behavior, as well as improved bonding to difficult-to-bond substrates. Synthetic polymer emulsions […]
1. Acrylate emulsion Acrylate is the general term for acrylic acid and its homolog esters. Mainly includes methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, and butyl methacrylate. Acrylate can be self-polymerized or copolymerized with other monomers and is the primary raw material for producing acrylate emulsion. Acrylate emulsion is an emulsion prepared by acrylate monomers […]
1. Liquid polymer The liquid polymers used for modification in cement mortar and cement concrete include epoxy resin and unsaturated polyester, and a curing agent is added when mixing with cement. Using liquid polymers to modify cement mortars and concrete must use systems that cure in the presence of water. After the polymer is mixed […]
Various additives are used in the components of commercial mortar products, cementitious materials, and aggregates. Additives are essential components in commercial mortar products, which can affect the mixing and construction of mortar and the quality of mortar—various properties after hardening. The dosage of these additives is generally about 0.01% to 10% (referring to the mass […]
Commercial mortar is different from concrete as a structural material. In addition to the necessary strength (except for ground mortar, the general requirements for its strength are not high), the main conditions are to meet water retention, bonding, waterproofing, crack resistance, impact resistance, and anti-corrosion. In terms of freeze-thaw, high-temperature resistance, thermal insulation, and other […]
Mortar refers to construction engineering material prepared proportionally by cementitious material, granular fine aggregate, mineral admixture, water, and various additives as required. Commercial mortar refers to a granular or powdery mixture produced by a specialized manufacturer that has been dried and sieved with fine aggregate and cementitious materials, mineral admixtures, and various mortar additives in […]
