Concrete Wall Expansion Joint Detail

Selection guide for fire rated expansion joints for structural and seismic joints in walls floors and decks of buildings.

Concrete wall expansion joint detail.

Control joints are typically required in exposed above grade concrete masonry walls where net aesthetic shrinkage cracking may detract from the appearance of the wall and to limit moisture or air infiltration. There is a special check to be done at the construction joints when larger retaining walls or structures having very high lateral loads are designed. Ment should not pass through wall expansion or isolation joints. Expansion joints are provided in slabs pavements buildings bridges sidewalks railway tracks piping systems ships and other structures.

Expansion joints are placed in concrete to prevent expansive cracks formed due to temperature change. In addition emseal is adding 3 d dwf files created in autocad inventor on a regular basis. See clay and concrete masonry banding details tek 5 2a ref. The building longer than 45m are generally provided with one or more expansion joint.

The pre planned cracks will provide a better finish concrete product and will be formed in specific locations where those cracks could be monitored. The concrete is subjected to volume change due to many reasons. The hight shear force is applied at the horizontal construction joints located at the lower level. Concrete joints are used to compensate when concrete expands or shrinks with changes in temperature.

This article emphases on need of expansion. I like the corner detail alright but the joint details i m working on are a work in progress. Expansion is a function of length. Ul 2079 certified joint systems.

Chapter 9 liquid retaining structures p. Expansion joint and sealant cad details are provided here in quick view gif as well as dwg and pdf files. Concrete joints are normally used to prevent cracks when the concrete shrinks by creating forming tooling sawing and placing joint formers. 8 1 introduction 8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints.

So we have to cater for this by way of joint to relieve the stress. Types of construction joints in concrete structures. True expansion joints in cast in place walls are not common. Folks i m working up some typical details here and i want to open for comment.

Expansion joint cad details library index. 9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4. Construction joints use construction joints when the c o n c r ete placement. Dwf files where available are under specific product joint sizes.

1 for more detailed information. The friction of the concrete is the key factor that limits the movement. Concrete undergoes expansion due to high temperature when in a confined boundary which leads to cracks.