I think that concrete, abaynikanga iskhathi esanele, Koda nje asethembe aysoze yabanikeza inkinga...
@BecomingTheGirlOfMyDreams
11 ай бұрын
Can I ask: What's the purpose of concrete curing?
@kwandilemtsweni9418
11 ай бұрын
In order for concrete to achieve its maximum strength, it needs to be kept at moist conditions and at certain temperatures.
@BecomingTheGirlOfMyDreams
11 ай бұрын
@@kwandilemtsweni9418Thank you 🙏
@diybuilderza
11 ай бұрын
The purpose is to prevent/minimise evaporation of water that's added into the concrete mix. Coving the slab with plastic and watering it frequently helps keep the sun from baking the slab too much which helps keep the original water inside the concrete. The concrete mix, ie sand, stone/aggregate and cement has an optimal amount of water it needs to begin and complete the process to becoming solid and hard. Too much water in the mix is not good but too little water is also not so good. The concrete supplier will deliver the mix with the correct ratios (at least that's the expectation) and this water once mixed in should remain inside the concrete while it continues to harden. Maybe imagine a special pastry that needed a few weeks of baking for it to be ready but the instructions say exactly 1 liter of milk should be added to the dry mix and that this milk should not be allowed to evaporate out of the mix in any way during the next few weeks of baking. With no curing the slab is exposed to direct sun which heats up the slab therefore causing the water inside the mix to evaporate faster than normal which then interferes with the strengthening process which takes several weeks. Too many cracks on the slab will be a sign that it got baked a lot by the sun. There will be cracks regardless, I spotted a few on my one. Concrete becomes solid enough to walk on within a few hours of pouring but it gradually hardens over a number of days - some say up to a month
@diybuilderza
11 ай бұрын
@@kwandilemtsweni9418 👍
@re-arabetswephanyane4115
11 ай бұрын
Concrete needs to keep reacting with water in order to obtain maximum strength over 28 days
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