Block Wall Expansion Joints

As mentioned in the expansion joints discussion the design of control joint spacing and location is the responsibility of the designer.

Block wall expansion joints.

Change in wall height or thickness see figure 1 figure 2 change of loading see figure 3 abutments of walls and columns see figure 4 junctions of dissimiliar materials see figure 5. This is because of greater loads in the lower parts of the wall. Guidance for spacing and location of control joints can be found in the national concrete masonry association ncma tek note 10 02c control joints for concrete masonry walls empirical method 2010. These principles generally apply to both horizontal and vertical joints.

Control joints are often constructed to transfer lateral loads across the joint. Expansion control joints to control the expansion and protect the wall structure from cracking under pressure masons install vertical control joints at specific locations. Aggregate concrete blocks position of movement joints consideration for the location of movement joints should be given at. These joints will absorb the pressure created by the expansion by giving the masonry wall flexible space to expand.

In the concrete block construction the expansion joints are expressed as control joints. Movements joints are typically constructed and filled with low density expansion and movement joint. The purpose of a masonry control joint is to allow free movement while maintaining the weathertightness of the construction. This allowed movement helps prevent distortion and cracking.

A masonry expansion joint is a complete break in the masonry wall to allow for the entire structure to move under loading temperature related expansion contraction etc. An expansion joint is simply a disconnection between segments of the same materials. The siteworx foam expansion joint filler. Like control joints expansion joints should be provided near corners in the masonry near returns or changes in the planes of the masonry wall at an y significant changes in the wall s height or stiffness at changed in foundations and at regular intervals along.

Our siteworx foam expansion joint filler is made from polyethylene foam which comes with low moisture properties. Exterior vertical wall expansion joint selection guide emseal watertight fire rated sound proof insulating precompressed foam sealant expansion joints. Based on the location of joint expansion joints are divided into following types. While these attributes are the primary basis for concrete masonry s.

This is the perfect filling for expansion joints in brickwork and blockwork as it expands and contracts with the movement through a building. Types of expansion joint. The expansion joints are incorporated to endure the stresses.