Mar 13, 2013· for 100 sqft wall plaster on one side =1 bag. 2. Cement for 100 sft 9'' thick wall = bags. 3. Bricks= 960 nos. is lot of differance in local and company steel bars. Company steel bars are much better.

You can rent most of the concrete tools needed to pour a pad from a construction rental store for a fraction of the cost to buy them. Concrete tools, including a bull float, hand trowels, a stinger vibrator, concrete broom and screed often rent as a set for between 35 and 75 dollars per day.

This article will explain how to make concrete blocks and how to start a home business of concrete block making. ... You will require cement, sand, gravel, and water for making the concrete mix. Put the cement, sand, and gravel in the container at a ratio of 1:2:3. Start mixing water in the container and stir the mixture continuously with a rod ...

How to Pour a Floating Concrete Slab. ... Remove as much sand as necessary to set the two corner forms in place at the proper height. The guide strings will be used to keep the form placement straight. ... How to Pour a Cement Slab. NOTE: If you would like to obtain a quote from a reliable, licensed, bonded, local ...

Q: Our concrete walk has pits and seems to be crumbling. How can we fix it? —Jace Laakso, Missoula, Mont. Tom Silva replies: Spalling, the pits that form in concrete, happen when too much water is used in a concrete mix, weakening it. As long as your walkway isn't cracked all the way through, you can coat the slab with a concrete resurfacer, a noshrink blend of Portland cement, sand.

A basic mixture of mortar can be made using the volume proportions of 1 water : 2 cement : 3 sand. Most of the student activities can be conducted using this basic mixture. Another "old rule of thumb" for mixing concrete is 1 cement : 2 sand : 3 gravel by volume.

Mar 04, 2013· Sand has a much higher capillary draw than gravel, and can seep into fill perforated drain pipes, etc. Directing roof drains well away from the house is the first line of defense, but I personally wouldn't feel right about not having perimeter drain at the footing as well, even with sand that seems to drain well on it's own.

Mixing Concrete . When it comes to mixing concrete, there are three options to choose from: Mix by hand where less than ¼m³ of concrete is needed, it can be mixed by hand by a reasonably fit person.; Use a cement mixer where the quantity is between about ¼m³ and 2m³, a powered concrete mixer is useful or ; Buying in Ready Mix where more than 2m³ of concrete is needed, it is easier ...

For typical domestic use, 1 cubic metre of concrete at 3500 psi (25 MPa) can be readily created by mixing seven 50 kg bags of cement with cubic metres of sand and cubic metres of stone aggregate. Concrete of this strength is ideal for patio slabs, footpaths and steps.

How to Remove Concrete Steps. Renovations are happening at your house. It's time to bring the house from the 1950's into the new millennium, so closing off one exterior door and removing a set of steps has to happen. Usually, concrete steps are set on their own foundation and not on the same slab as the house foundation. If they are, removal is...

Apr 03, 2013· General purpose concrete for a base for slabs or a garden shed: 1 cement; 2 sharp sand; 3 coarse aggregate; Mix with water to produce a consistency that should pour easily; Alternatively, another generalpurpose concrete mix is: 1 cement; 4 ballast ; Mix with water to produce a consistency that should pour easily

Jul 09, 2014· 1 Answer. With a standard 3 in 1 sub ground concrete mix, (3 parts ballast to 1 part cement), each 850kg bag of ballast will account for 1150 kg of concrete due to the addition of cement when mixing. Using this mix you will need 12 no. 25kg bags of cement for each 850 kg bag of ballast = 12 x 25kg = 300kg + 850kg = 1150kg.

Jan 26, 2014· Once you've figured how much concrete you'll need, determine how to get it to the job. Concrete is a mixture of sand, gravel, water and Portland cement. It can be obtained in three ways: separate dry ingredients that you mix on site, premixed in the sack where you just add water, and readymixed from a batch plant and delivered by truck.

Oct 14, 2015· having the concrete volume, we can then compute for the cement and sand using a mix ratio of 1:6:0 gravel or aggregate is not needed for mortar ... so, to get the amount of cement needed for a cubic meters of concrete the formula is ... (volume * ratio of cement) / mixture total ratio ...

Mar 21, 2008· They are also more efficient when you are building one house at a time. "When I decided to build concrete homes, I knew I would have to market directly to the end user," says Krantz. "People don't have much interest in concrete until they walk through a home and see and feel the benefits. Then they want it."