Graphical Construction Glossary >> Concrete and Concreting. >> >> Concrete Masonry Unit CMU
I live in a cyclonic area so this form of building walls is very popular. This modular hollow block system allows for great flexibility in design, but more to the point it is tremendously strong.
The photo above shows block-layers building a 200 series (8") external reinforced wall onto a raft slab. The slab has N12 starter bars already cast into it and the blocks are laid over them.
In the background can be seen pallets of various block types. Some 100 series (4") for internal walls and some some knock out blocks that can be used for bond beams and lintels above openings.
This photo show blockwork that has been laid on concrete strip footings. Where it come to the floor slab level "E" blocks are used to allow the reinforcing steel, mesh and concrete to sit on top of the already corefilled wall.
Note that in this type of construction ALL the cores are filled up to the ground floor slab.
Concrete Corefill consists of a specific mix of concrete that is designed for pumping and filling these cores. It has to run freely down the cores and sideways over and under openings. It may have a plasticising additive and a higher water ratio than normal concrete.
Corefill uses a maximum 10mm aggregate and it's strength is normally 15mPa.
If you didn't find exactly what you are looking for try this search tool that will search the site and the web.
"What can be added to the happiness of a man who is in health, out of debt, and has a clear conscience?
"When we build, let us think that we build for ever."John Ruskin 1819-1900
Furniture Fittings - Architectural Hardware - Electronic Locking Systems - Technical Hardware
Roof Glossary and Roofing
Formwork Glossary and other tempory work.
Hand Tools Glossary
Power Tools Glossary
Calculator Pages.Concrete yardage calculator
Reader's Questions.Questions and answers.
Please Note! The information on this site is offered as a guide only! When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area. It could be out of date! Regulations breed faster than rabbits!
You must check your own local conditions.
Copyright © Bill Bradley 2007-2012. All rights reserved.