Borehole Compressor

Jackhammer / chipper work

Guy chipping away at floor that was casted to high.

Scarifying of floor

Here is a guy scarifying, scraping of a floor that's to high, before we do the topping / screed.

Topping

Hi

Please see attached images of a topping /screed.

1. In progress

2. Completed

Concrete

Hi All

As I've mentioned in some of my previous post Concrete is made up of mainly three essential parts , Stone , sand and Cement.

Some of the uses of Concrete-

Foundation footings
Floor slabs
Beams
Concrete lintols

Depending on the end usage of the concrete and specification of you engineer the concrete strengths will be adapted.
Concrete strengths ate measured in Mpa, the lower the Mpa the weaker the mpa the lower the strength.

Mpa strengths most commonly used is 15mpa , 20 mpa and 25mpa the more strain the concrete will take the higher the Mpa.

Most concrete would also require some form of steel reinforcement which will be specified by your engineer.

Concrete are also mixed in two primary ways

Firstly by hand or small concrete mixer on site.

Or by what is commonly known as Ready mix which is delivered to site in a truck.

Depending on your needs , budget and time availability you'll make your choice.

It is till a point that is being argued that hand mix is cheaper than concrete although more labour intensive, and for obvious reasons the latter will take more time.



Hope this gives you some more insight on the make-up and usage of concrete.

Please see attached image of a concrete mixer on site.

Regards

Aggregate Stone

Hi All

So in this post we'll be having a look at aggregate stone,

Stone are mainly used on site for concrete and around drainage pipes.

Contractors mainly use 13mm and 19mm for concrete mixing purposes.

As said in some of my previous post stone are you used in conjunction with Cement and Sand to formulate concrete.

Stone are measured in m3(cubic metres) and can be bought accordingly - Sand and Stone companies will normally deliver 10m3 or 6m3 trucks depending your requirements, you can also buy 1m3 or single bags from your local hardware for smaller jobs.

In some of my later posts I'll post some tables on concrete types , mixing types and strengths and how to achieve this.

Please see the attached image.

Regards

ROK Clay Bricks

In The attached image is what is typically referred to as ROK Bricks.

ROK Brick Dimensions
L 225mm X W110mm X 75mm

Another brick that is commonly used is a Cement brick (also known as a Maxi Brick) which is a bit cheaper , and not to be confused with a building block, I will do a post on both of these at later stage.

Back to the ROK brick

The ROK brick is especially popular in the building of more expensive homes, because it is a stronger brick.

Due to the fact that it is a solid brick (without) holes one also eliminates the problem one has when drilling holes for anchoring screws to hang items like curtain tracks , mirrors .

Hope you find this information useful.

Regards