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  General Guideline Home / General Guideline


Stacking

  Stacking of blocks should be done on dry properly leveled surface.

  Height of Block should not be more than 1.5Mtr.

  Multi handling should be avoided

  There should not be any foreign material between two blocks, as blocks may crack or get damaged while stacking, due to point loading.



Pre Construction Inspection

The column should be straight enough and have sufficient strength. Hacking of column provides positive key for joining mortar. Hacking should be done just after construction of column with pointed tools. There are certain chemicals available in the market which can be applied on beam / column to avoid manual hacking.



Wall Thickness

The minimum thickness of non-load bearing internal walls should be 100mm. Minimum thickness of external walls in framed construction should be less than 200mm. However depending upon the local conditions and desired effect 150mm thick walls may be used.



Masorny : As per IS 6041



Testing Method : As per IS 6441



Provision of Normal Bond Beam in the wall

A horizontal reinforced bond beam must be provided for adequate stability, stiffness and strength to all types of walls including AAC, so its slenderness ratio can be maintained. Norminal bond beam must be constructed just like the structural bond beam using 8mm mild steel bards or 6 mm deformed steel bars. In a wall without openings, bond beam should be spaced ate heights of 1200mm apart and may be of any length up to 18 meters. The nominal bond beam should be discountinuous at the control joint. Dummy joints should be formed when the bond beam is continuous at control joints.



Intersecting Walls

When two walls meet or intersect and the courses are to be laid at the same time, a true masorny bond between at least 50% of the units at the intersection is necessary.



Door & Window Frame

All types of door window frames can be used in construction. Leave appropriate space for door and window frames while constructing the wall. Frames may be attached to the masorny by hold fast anchored in the vertical reinforced concrete studs provided to the frames. Use a coping beam above door and window frames - it should strech 6" - 9" beyond the width of the frane on bothside.



Rendering

Rendering should not be applied to the walls when they are wet nor during monsoon. The walls should be dry before rendering. The surface of wall should be cleaned of any dust for proper adhesion. Moisten the wall with water just prior to apply the rendering to prevent absorption of water from it. The mix for rendering should either be 1:6 cement: sand ratio. It is recommended that Ecorex Ready Mix Plaster to be used for better results as the product has dry graded sand with strict control on quality during manufacturing. It is available in 40kg bag.



Packing & Delivery

Material is supplied in blocks of m3 in open body or closed body trucks. Material packing is done through tightening using plastic strips, thermocol and rice husk.



Shelf Life, Condition of application storage

AAC has been widely used in Europe since 1920. In India AAC Blocks have been used since 1885. AAC is long lasting. The life of this material is extended bacause it is not affected by harsh climates or extreme changes in the weather conditions. It will not degrade under normal climate changes either. Before use it should be protected from direct rain only and must be used at very low temperature. It should not be used as fire brick. It also must not be used in foundations and damp course conditions. AAC block should be protected from direct rain while in storage.