Natural cellulose fiber is one of the important additives in dry mortar products. It has been used since it was introduced into China in 1990s. At present, the largest one is the Arbocel cellulose fiber series produced by the German JRS company. Although some domestic manufacturers have begun to produce similar products, but due to … Continue reading
Recycled gypsum as a raw material for mortars such as gypsum plaster is hindered by significant prejudice and is not well accepted in the industry. Gypsum plaster with partial replacement by recycled gypsum also demonstrates that sustainability of construction materials is possible and represents another positive step toward circularity in construction. 1 Introduction Recycled gypsum … Continue reading
Wood fiber is widely used in dry powder mortar, such as tile adhesive, jointing agent, dry powder coating, interior and exterior wall putty, interface agent, insulation mortar, anti-cracking plaster mortar, waterproof mortar and plaster plaster. Because wood fiber is a natural fiber insoluble in water and organic solvents, it has excellent flexibility and dispersibility. Adding … Continue reading
In recent years gypsum has been used more and more widely in the construction engineering, and the use of gypsum based dry mortar has become the main product of dry mortar. For example, as the interior wall plastering material, plastering gypsum has the functions of light weight, anti-inflammatory, sound insulation, heat preservation, sound absorption, etc. … Continue reading
Applying RDP into mortar is actually the modification of ordinary mortar, also known as polymer modified cement mortar. Through polymer modification, the brittleness, high elastic modulus and other weaknesses of traditional cement mortar are improved; the cement mortar is endowed with better flexibility and tensile bond strength to resist or delay the generation of cement … Continue reading
AbstractDamp masonry is a threat to architectural structures while also posing ahygienic problem to living conditions in the building’s interior. ydrophobicagents have been the preferred method for protecting masonry facades and building surfaces against moisture entry and weathering. Early water repellent systems had to be externally applied on finished constructed parts and outside structures. Such … Continue reading
Cementitious building materials such as concrete, mortar, and masonry tend to readily absorb water because of their pore and capillary structure. To prevent damage due to moisture absorption, the material’s absorbency can be reduced by the application of a water repellent sealer. Silanes and siloxanes, the two most common types of water repellents, are both … Continue reading
Moisture can do irreparable damage to gypsum building materials. To prevent this and to protect the set gypsum mortar against moisture, powder-form water-repellent agents are admixed to the dry-mix mortar. This requires manufacturers of standard powder-form water repellents to employ carrier or encapsulation materials as a way of converting the liquid active ingredients into a … Continue reading
ANTI CRACK FIBER Anti crack fiber is a new type of fiber of concrete and mortar which is composed of polypropylene and polyester. It is called secondary reinforcement of concrete. With the development of composite materials, anti crack fiber has been widely used in civil engineering. The results show that when the crack resistant fiber … Continue reading
idmmc8, Nürnberg, 22. Mar. 21: Splendid Classic Car Location Secured In our last Newsletter, we announced the 8th International Drymix Mortar Conference idmmc8, taking place as real event in Nürnberg, Germany on 22. March 2021. We had issued a Call for Papers then (please send us those contributions, dear supporters!). In the meantime, we managed … Continue reading