Concrete structures should usually last between 50 and 100 years. Unfortunately, a lot of today’s structures are experiencing premature deterioration. Why is that? More importantly, how could you make concrete stronger?
Water usually is the culprit behind all the bad things that happen to concrete. When water gets in, it can corrode the concrete, erode its surface, and carry contaminants.
Preventing this is not as easy as looking for concrete reinforcing mesh for sale. You have to do everything to keep water away from your concrete. Here are five ways:
1. Proper Concrete Mix Design
You need to match the mix design with the conditions the concrete will be exposed to. There is no mixture to rule them all. For example, if you intend to create the structure in a sulphate-rich soil, you have to use sulphate-resistant cement.
2. Planned Control Joints
Cracks are a weak point that concrete are susceptible to. It is also where water can get through and wreck havoc on the entire structure. To minimise random cracking, you should have control joints at pre-determined locations. These control joints must be waterproofed, so water can’t get through them.
3. Low Permeability
The single most important quality of all good cement for sale is low permeability. While good mixture design can increase its durability, you have to choose the cement that can displace as much water as possible in the mixture. Use water-reducing admixture called plasticisers.
4. Placing Concrete Properly
You often find rock pockets and voids behind the reinforcing bars when a poured concrete mixture is not adequately vibrated. You need to dedicate enough time to vibrate the mix, especially in areas where reinforcements are congested.
If you miss any of these tips, you could compromise the durability of concrete, and ultimately your structure. Concrete is durable enough, but you can enhance it further if you follow these tips.