特殊迫撃砲の分類

近年、モルタル産業は非常に繁栄しています。乾式粉末モルタル、湿式混合モルタル、石膏モルタルなど多くの種類がありますが、特別なモルタルについて聞いたことがありますか？どんな種類の特殊モルタルが利用できるか知っていますか？本日は、特殊迫撃砲の分類をご紹介します。

まず、特殊モルタルとは何かをご紹介します。特殊モルタルは、主に防水、耐放射線性、耐食性、吸音性、断熱性、接着性、装飾性などの特殊な要件に適したモルタルの一種です。

Waterproof mortar. The most widely used and the most common waterproof mortar on the market is actually cement mortar mixed with a waterproof agent. It is mainly used for water-proof locations such as pools, water towers, basements and liquid storage tanks, and can also be used for leak repair.

Corrosion-resistant mortar. It can be divided into the following four types: the first, acid-resistant mortar. The second, sulfur and acid resistant mortar. Third, ammonium-resistant mortar. Finally, alkali-resistant mortar.

Radiation-resistant mortar. There are two types:

(1) Barite mortar. Made with cement, barite powder, barite sand and water. The volume is large (2.5 tons/m3), which can block X and γrays.

(2) Boron cement mortar. It is made by adding a certain amount of boride (such as borax, boric acid, boron carbide, etc.) to the mortar, which has anti-neutron radiation performance. Commonly used ratio is lime:cement:barite powder:calcium stearate powder = 1:9:31:4 (weight), and add an appropriate amount of plasticizer.

Polymer mortar. There are the following two types:

(1) Resin mortar. It is made of synthetic resin with curing agent (such as ethylenediamine, benzenesulfonyl chloride, etc.), powder and fine aggregate. Commonly used are epoxy resin mortar, phenolic resin mortar, epoxy furan resin mortar and so on. It has good corrosion resistance, waterproof, insulation and other properties and high bonding strength, and is commonly used as an anti-corrosion surface layer.

(2) Polymer cement mortar. Add an appropriate amount of polymer adhesive (such as polyvinyl alcohol), pigment and a small amount of other additives to the cement mortar, mixed with water. Used for exterior wall decoration, it can improve the adhesion of mortar and the durability of the surface.

Insulation sound-absorbing mortar. There are mainly expanded perlite mortar and expanded vermiculite mortar. It is made of cement, lime, gypsum as a cementing material, expanded perlite sand or expanded vermiculite sand as an aggregate, mixed with water. It has the advantages of light bulk density, good thermal insulation and sound absorption effects, and is suitable for roof insulation and plastering of interior walls and pipes, etc.

以上が特殊モルタルの基本的な状況です。特殊モルタルの詳細については、上記の特殊モルタルのほとんどを提供しているAPEXにお問い合わせください。