Many times, the average person uses the terms “cement” and “concrete” interchangeably without realizing that there is a difference. Even when the handyman refers to “cement,” there is often a question as to exactly what he means.
Before going into the details on mixing and various projects, here is a definition of terms:
1. Portland cement is a manufactured item acquired in sacks that generally consist of 1 cubic foot.
2. Cement is a mixture of Portland cement, sand and water.
3. Concrete is a mix of Portland cement and sand with gravel contributed to offer it strength and bulk, plus water.
4. Mortar is a mix of Portland cement, sand and water with about 10 % hydrated lime added.
5. Grout is a streaming mass of cement or concrete.
How Much of Each?
For a lot of cement jobs – to set flagstones or patch a residence foundation, you need 1 part of Portland cement to 2 1/2″parts of clean, great sand.
For concrete tasks, the proportion differs relying on the use to which the concrete is put.
For mortar blends – for playing brick or concrete block or repointing brick – use 1 part mortar cement or 1 part Portland cement with 10 % lime added to 2 1/2 ^”parts great, clean sand plus water.
Standard Tools for Concrete Work
Here are numerous of the standard devices you require when doing cement or concrete work about your house:.
1. General-purpose trowel – for placing cement or concrete when doing any concrete work.
2. Pointing trowel – for smaller sized repair service and covering jobs and also finishing details, specifically the joint in between rows of brick.
3. Wood float – for completing the surface area, making it smooth but with a gritty texture.
4. Steel float – for completing the surface area, making it smooth, slick and tough.
5. Edger – for completing walkways and big surfaces where rounded corners are wanted.
6. Strike board – for striking off the extra of the concrete; it leaves the surface level.
7. Tamper – for removing air inclusions in thick areas of newly poured concrete.
8. Broom – for completing surface area of concrete tasks with a rough, non-slip surface area.
Making a Measuring Box.
When doing any considerable mixing of your very own cement or concrete, a determining box is exceptionally handy, especially when making use of huge amounts. You can make this bottomless measuring box in simply a couple of minutes and stay clear of counting the active ingredients by the shovels-full.
Use 3/4 “plywood or 1″ thick lumber to make a box with 4 sides – a cubic foot – 12″ high, 12″ large and 12″ deep. Protect the sides with screws set about 2” apart. Two short lengths of 2×2 attached on the sides make it easy to move the determining box about.