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Autoclaved Aerated Concrete plant

Plant location:
Tuv aimag, Sergelen sum, Railway station Bayan zurlug, Zamyn Uud – Ulaanbaatar road MAK “EUROBLOCK” AAC PLANT

The Autoclaved Aerated Concrete (AAC) material was developed in 1924 in Sweden. It has become one of the most used building materials in Europe and is rapidly growing in many other countries around the world. Autoclaved Aerated Concrete, also known as Aircrete, is a lightweight, load-bearing, high-insulating,
durable building product, which is produced in a wide range of sizes and strengths.
AAC offers incredible opportunities to increase building quality and at the same time reduce costs at the construction site. AAC is produced out of a mix of quartz sand, lime, cement, gypsum/ anhydrite, water and aluminium and is hardened by steam-curing in autoclaves. As a result of its excellent properties, AAC is used in many building constructions, for example in residential homes, commercial and industrial buildings, schools, hospitals, hotels and many other applications.

The construction material AAC contains 60% to 85% air by volume. The solid material part is a crystalline binder, which is called Tobermorite by mineralogists. Besides the binding phase Tobermorite aircrete contains grains of quartz and in minor amounts some other minerals. The chemical composition of Tobermorite shows
silicium dioxide, calcium oxide and water. The silicium dioxide is obtained from silica sand, fly ash (PFA), or crushed quartzite. It is possible to obtain silicium dioxide as a by-product from other processes, e.g. foundry sand. The calcium oxide is
obtained from quick lime, hydrated lime and cement. Gypsum/Anhydrite is added in small quantities as a catalyst and for optimizing the properties of AAC. Aluminium powder / paste is used as an expanding agent.

Advantages of EUROBLOCK

Extremely lightweight

AAC weighs approximately 50% less than other comparable building products

Large variety of sizes

AAC can be produced in a large variety of sizes, from standard blocks to large reinforced panels

Excellent thermal insulation

AAC has a very low thermal conductivity and therefore a very high thermal energy efficiency is achieved. This results in cost savings for heating and cooling

High compressive strength

AAC is a solid product, therefore making it highly load bearing. The entire surface area is used in structural calculations

High dimensional accuracy

As a result of its dimensional accuracy, AAC is extremely easy to install, as no thick set mortar is required

Great acoustic insulation

The porous structure of AAC provides a high acoustic insulation

High fire resistance

AAC has an extremely high fire resistance rating of at least 4 hours and more

Consistent product quality

Machine components are made out of certified steel types and manufactured with the help of CNC controlled welding-, milling- and drilling machinery. This results in machinery and systems with accurate dimensions and a high quality standard.

Weather resistance

AAC is one of the most durable building materials known to man. AAC is not vulnerable to weather damage as many other building materials are.

Termite resistance

AAC can not be damaged by termites or insects

High workability

As a result of the excellent size/weight ratio, AAC allows rapid construction work. Even though AAC is a solid building material, it can be cut, sawn, drilled, nailed and milled like wood, making it an easily workable product.

Environment friendly
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Introducing Hess AAC Technology in Mongolia

About thirty years ago HESS AAC became active on the AAC market, concentrating mainly on manufacturing, installing and maintaining the production machinery for the world market leaders in AAC.

During this relationship HESS built several production lines for key customers in Europe , Asia, North and South America
HESS AAC Systems B.V. (previously Stork Bouwtechniek) possesses specific know-how on the building of machines and plants for the autoclaved aerated concrete and sand-lime brick industry.
In the production of the machine parts only certified steel is used in conjunction with CNC controlled welding, milling and drilling technology. This produces low manufacturing tolerances and guarantees the highest quality.