Mortar water retention rate specification requirements

Specialized masonry mortar water retention rate national standards:

GB/T25181-2010 ready-mixed mortar; JC/T2381-2016 repair mortar; JC/T890-2017 autoclaved aerated concrete wall special mortar; JGJ/T136-2017 penetration method to detect the compressive strength of masonry mortar technical regulations.

Mortar is a bonding substance used for bricklaying in construction, consisting of a certain proportion of sand and cementing materials (cement, lime paste, clay, etc.) with water and into, also called mortar, also as mortar.

Mortar commonly used cement mortar, mixed mortar (or called cement-lime mortar), lime mortar and clay mortar.

Mixed with inorganic cementitious materials with fine aggregates and water in proportion, also known as mortar. Used in masonry and plastering works, it can be divided into masonry mortar and plastering mortar, the former is used for masonry of bricks, stones, blocks, etc. as well as installation of components; the latter is used for plastering the surfaces of walls, floors, roofs, and beams and columns structures, etc. in order to achieve the requirements of protection and decoration.

Ordinary mortar materials are also used in gypsum, lime plaster or clay mixed with fibrous reinforcing materials formulated with water into a paste, known as ash, paste, mud or mastic. Commonly used in machete ash (mixed into the machete lime paste), paper tendon ash (mixed into the paper tendon lime paste), gypsum ash (in the cooked gypsum mixed with lime paste and paper tendon or glass fibers, etc.) and mixed with gray mud (clay mixed with a small amount of lime and wheat straw or straw).