In this blog series we will discuss about how to make a your created hollow blocks stronger. Making a quality hollow blocks is the secret to a successful hollow blocks making business. Not only in a competitive blocks price but the quality of your hollow blocks will speak for itself will bring you to success in the field of concrete block making business.
Okay let’s start our topic.
The secret behind a strong hollow blocks is the ways it cures. As research shows a concrete in this case let’s include hollow blocks because it is also a concrete product that is why we call it concrete hollow blocs.
On its first day from the time it was taken out of the molder, it can gain a strength of 16%, on the third day it has already gain 40% of its strength, on its seventh day I has gain 65% of its strength, on its fourteenth day it has already gained 90% of its strength and on the twenty eighth days it has gained a 99% of its total strength.
After 28th days its strength will slow down and continue to strengthen until the 120th days the reason why the engineers uses a maximum of 28 day to design a concrete project. This is really amazing concept , they call it the LLN (law of large numbers) which was originated from the principle introduce by Jacob Bernoulli a Swiss mathematician.
On the first day that the hollow blocks was cast out of the molder, let’s talk about hollow blocks made during summer time…you will notice after an hour it was casted out of the molder, the corner portion will dries up very fast because of the suns heat. The rate of evaporation or bleeding is tremendously fast.
If you don’t know how to handle this, you are in trouble of producing a low quality hollow blocks that will easily break and pulverized, and this might put your hollow blocks making business into a bad light or let’s say a very negative impression once somebody purchase it from you.
Now to make a good quality concrete hollow blocks stronger, you need to properly water it after it was made. We call it curing, this is the time given to the hollow blocks to get itself properly dried up. Do you know what is happening during the curing time?
Here is what’s happening during the
curing process, Ettringite crystals are formed by the reaction between sulfate ions and the
aluminate phases in cement. It forms naturally during cement hydration as
calcium sulfate is included in the mix materials to control hydration.
Okay lets go back again.
Remember this step is to be use in summer time.
To have
a properly cured hollow blocks, on the
first day that you notice that the corners of your hollow blocks are
turning white this is a sign of very fast evaporation and you need to supplement
some moisture to avoid the abrupt drying of the block.
Get a
pail of water and a dipper, fill the dipper with small amount of water and
sprinkle it slightly so that the impact of the water will not hurt the concrete
hollow blocks and to avoid breaking it due to water impact. look at the video
for reference. I am sharing this technique based on my experience as a hollow
blocks making business entrepreneur.
On the second day, before the worker will start the next batch of
production on that day, ask him to water, or water it yourself. Get again a pail of water and a dipper, fill the dipper of water
and bathed the hollow blocks until it is
soak and wet, do this in the morning and repeat this around
4-5pm in the afternoon.
On the third day, repeat the same process as it was instructed on the second day.
On the fourth day, file the hollow blocks in low layers of three hollows blocks per layer, Once everything is filed up in three layers low, get again the bucket and dipper and bathed again the hollows soaked and wet.
On the Fifth day, you can slowly increase the height of the file until it dries up and ready to be sold.
What if you as owner was not able to sold the hollow blocks right away after a week? Then what you have to do is you can water the blocks at least twice a week until you were able to sell it. This will be the process you need to take to make your hollow blocks stronger during the curing stage. Do this process during summer time production.
A different approach of watering will be needed if hollow blocks will be made during the rainy season. As the season suggest , slow evaporation will take place during this time of the year. It follows that the hollow blocks will dries up slowly. As an experience hollow blocks making business owner, a different watering approach will be applied to the produce hollow blocks pieces.
Okay let’s start with the following steps of watering of hollow blocks that are made during the rainy days. The tendency of hollow block making entrepreneur is to stocked their hollow blocks during the rainy season and sell it in the summer time.
Remember this step is to be use in rainy days.
On the first day, that the hollow blocks is taken out of the molder, wait for three days before watering it. This is to avoid water impact that make break the hollow blocks.
On the third day, water the hollow blocks until it is soaked and wet. By this time it can already resist the water impact.
On the fifth day, you can file up the hollow blocks low at least by three layers high.
On the sixth - seventh day onwards, you can slowly increase the filing and wait for the hollow blocks to dry up. Repeat this processes for your hollow blocks making business. How to make your created hollow blocks Stronger
Thank you.
