How to meet the special requirements of mortar equipment?
Mortar equipment is a common material, but some special requirements cannot be excluded. Therefore, it is also possible to produce mortar equipment with special requirements. Special mortars are mortars for special requirements such as thermal insulation, sound absorption, waterproofing, corrosion resistance, radiation protection and bonding.
Various mortars.
Insulating and sound-absorbing mortars, mainly expanded perlite mortars, expanded vermiculite mortars. Cement, lime and gypsum are used as cement materials and expanded perlite sand or expanded vermiculite sand is used as an aggregate and mixed with water. It has the advantages of light weight, good thermal insulation and good sound absorption. It is suitable for roof insulation, pipes and ducts. Waterproofing mortar, mixed with cement mortar waterproofing agent. Waterproofing components required for basements, water towers, swimming pools, water storage tanks etc. can also be used for leak repair. There are four main types of corrosion resistant mortar: 1 Acid mortar. Water glass is used as a cement material, lime powder as an acidic powder and sodium fluorosilicate as a curing agent. Acidic polyurethane mortars can be used as a general acid resistant workshop floor. 2 Sulphuric acid mortar. A poly vulcanised rubber, used as a plasticiser, with sulphur as a binder, mixed with acid powder and aggregates and formed by heating. It has high strength, high strength, strong fixing, resistance to most inorganic acids, neutral salts and acid salts, but not to nitric acid in concentrations above 5%, alkalis and organic solutions, and poor abrasion resistance. Fire resistance. Great brittleness and shrinkage. Usually used for bonding blocks, pouring pipe joints and floors, equipment, tanks, etc.3 Ammonium resistant mortars. Firstly, dry high alumina cement, magnesium oxide powder and quartz sand are evenly mixed, compound phenolic resin is fully mixed, various ammonium salts and ammonia are eroded instead of acid and alkali. 4 Alkali resistant mortar. Ordinary silicate cement, sand mixed with water, sometimes mixed with asbestos. The sand powder should be made of alkali-resistant limestone, dolomite and other aggregates that can withstand alkali corrosion at room temperature up to a sodium hydroxide concentration of 330g/l.
There are two types of radiation resistant mortar: 1 type of barite mortar. Water made from cement, barite powder and barite sand. Large capacity (2.5 t/m3), can act as a barrier to X, γ rays. 2 Boron mortar. Neutron radiation resistance is prepared by mixing mortar with quantities of borides (e.g. borax, boric acid, boron carbide, etc.). Commonly used in lime: cement: barite powder: calcium borate powder = 1: 9: 31: 4 (weight ratio), and add the appropriate amount of plasticizer. There are two types of polymer mortar: 1 type of resin mortar. Fine aggregates are prepared by adding curing agents (e.g. ethylenediamine, benzenesulphonyl chloride, etc.) and powders to synthesise the resin. Commonly used are epoxy resin mortars, phenolic resin mortars, epoxy furan resin mortars, etc. It has good corrosion resistance, water resistance, insulation and high bond strength and is commonly used as an anti-corrosion surface layer. 2 Polymer cement mortar. Cement mortars are prepared by adding appropriate amounts of polymer binders such as polyvinyl alcohol, pigments and small amounts of other additives, and mixing with water. For external surface treatment, this improves the adhesion and durability of the mortar.
How to meet the special requirements of mortar equipment?
2021 10/27