BEE DJR Civils
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Types of concrete cracking
Here are some types of cracks in reinforced concrete:
1. 𝐏𝐥𝐚𝐬𝐭𝐢𝐜 𝐬𝐡𝐫𝐢𝐧𝐤𝐚𝐠𝐞 𝐜𝐫𝐚𝐜𝐤𝐬: These cracks are often shallow, irregular. They occur when the concrete is still in its plastic state and is drying too quickly.
2. 𝐃𝐫𝐲𝐢𝐧𝐠 𝐬𝐡𝐫𝐢𝐧𝐤𝐚𝐠𝐞 𝐜𝐫𝐚𝐜𝐤𝐬: These are hairline cracks that run parallel to each other and can occur anywhere in the concrete as it dries and shrinks.
3. 𝐓𝐡𝐞𝐫𝐦𝐚𝐥 𝐜𝐫𝐚𝐜𝐤𝐬: This type of cracks is caused by temperature changes in the concrete. Extreme heat or cold can cause the concrete to expand or contract, resulting in cracks.
4. 𝐒𝐞𝐭𝐭𝐥𝐞𝐦𝐞𝐧𝐭 𝐜𝐫𝐚𝐜𝐤𝐢𝐧𝐠: These occur when the soil beneath the concrete settles or shifts, causing the concrete to crack and become uneven.
5. 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐚𝐥 𝐜𝐫𝐚𝐜𝐤𝐬: These are cracks that occur due to overloading or inadequate design or poor materials or poor construction, in this case the applied loads exceed the capacity of the concrete to resist. Structural cracks typically exceed 0.3 mm, and may continue to widen over time. Structural cracks may include: Shear cracks, Flexural cracks, Shear/flexural cracks, Torsion cracks.
6. 𝐂𝐨𝐫𝐫𝐨𝐬𝐢𝐨𝐧 𝐜𝐫𝐚𝐜𝐤𝐬: These are cracks caused by expansion of the reinforcement steel inside the concrete due to corrosion.
7. 𝐂𝐫𝐚𝐜𝐤𝐬 𝐝𝐮𝐞 𝐭𝐨 𝐀𝐥𝐤𝐚𝐥𝐢-𝐚𝐠𝐠𝐫𝐞𝐠𝐚𝐭𝐞 𝐫𝐞𝐚𝐜𝐭𝐢𝐨𝐧 (𝐀𝐀𝐑): This is a chemical reaction that occurs between the alkaline cement paste and certain types of aggregates in the concrete, resulting in a gel-like substance that can cause expansion and cracking over time. AAR can include alkali-silica reaction (ASR) and alkali-carbonate reaction (ACR). —
We always deliver Quality Work in record time.
Renovations more pictures will follow
Quality workmanship BEE DJR
It was a long day on the road
Quality workmanship
Braai area, entertainment area, braais, decking, building, renovations, carports, civil works we do it all... CIVILS Ruendell Plaatjies
Quality workmanship from a great team. Thank you guys
Renovations-progress video
Brand new doors installed at the school, We believe in helping and uplifting our community. Ruendell Plaatjies
14June2023 We done some Charity work, we decided to fix some doors and other small basic things at a school in our community.
Methods Of Concrete Curing The method of protecting the moisture of concrete surface and enhancing the hydration of cement is known as curing of concrete. It is very
Installation of blinds, jip we do that aswell. Sometimes we would joke and ask what can't we do? Because lately we dont just do Civil and building work. We are on the move to great hights!!! Ruendell Plaatjies
Renovation in progress, final product to follow. Ruendell Plaatjies
THE "quality" of last nights concrete... Our guys surely know what they are doing..🙏 Ruendell Plaatjies (Director of BEE DJR Civils)
Late night!!! We do what we need to do just to ensure we delivery quality work timeously. Ruendell Plaatjies
Some random pictures of our Renovation work. Detail in the quality workmanship 👌🙏 Ruendell Plaatjies and Dawn Plaatjies
BEE DJR CIVILS-We do all your building, renovation and civil work. We as BEE DJR Civils always go the extra mile to ensure that our Client is happy and that we handover a quality product. Ruendell Plaatjies Dawn Plaatjies
Small bundwall for a backup generator.Big or small we do it all.
We stick to our commitment to deliver quality work on time!!! Ruendell Plaatjies Dawn Plaatjies
Easy day just casting 22m3 of concrete with a great team. We believe in delivering quality work.
BEE DJR CIVILS ON THE MOVE, erecting bundwall structures for 250kva and 275kva generators at Sivos Training Centre. We believe in Quality workmanship!!! Ruendell Plaatjies
BEE DJR CIVILS AT WORK, Insitu cast Double Culvert, G38 Sishen mine, work in progress
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3rd Street Mapoteng
Kathu, 8446
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