How long does a cold-joint last

A cold joint occurs when concrete is placed against hardened concrete. Proper surface preparation, adequate bonding agents, and timely placement. The time it takes for a cold joint to form depends on ...
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What Are Cold Joints in Concrete and Are They Bad?

A cold joint in concrete construction is a plane of weakness that forms when new, wet concrete is poured against concrete that has already begun to harden. This discontinuity occurs

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Concrete Joint Repair | Repair of concrete cold joints

High-pressure injection of flexible polyurethane is carried out along the entire length of the concrete crack, from the bottom to the top. The advantages are undeniable: the result is instant and long

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Correct execution of cold joints during concreting

Learn how to create cold joints during concrete pouring to ensure strong and durable results. Discover techniques, tips, and best practices for effective cold joint formation in your construction projects.

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Understanding Slab Cold Joints: What You Need to Know

When it comes to building construction, especially for residential homes or commercial buildings, understanding slab cold joints is crucial. These joints are points where two separate pours

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Cold Joint Cracks in Foundations

Learn to identify cold joint cracks in poured concrete foundations. Understand why they form, their severity, and when repairs are necessary.

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How Do You Waterproof A Cold Joint In Concrete?

Discover the top-rated methods for waterproofing cold joints in concrete. Learn the essential steps to protect your concrete structures effectively. Find the right solutions for a lasting

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Cold Joints in Concrete: How to avoid weak seams in small pours

Cold joints pose several threats to your concrete''s strength and longevity. The poor bond between the two pours weakens the overall structure, reducing its ability to bear loads.

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What is a Cold Joint in Concrete? (And How to Fix them!)

Cold joints might lead to serious issues related to the durability, structural integrity, and aesthetic appeal of concrete structures. Overall, these joints occur when there is a delayed pouring of fresh concrete

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Understanding Cold Joints: Timing And Prevention In Concrete Pouring

Learn about cold joints in concrete pouring, their timing, and effective prevention strategies to ensure structural integrity and durability.

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Cold Joint in Concrete and Methods of Treatment

In case the concrete at the joint has become so stiff that it cannot be remoulded and mortar or slurry does not rise in spite of extensive vibration, the joint is left to harden for at least 12 - 24 hrs.

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Laser Diodes & VCSEL

High-power CW/pulsed laser diodes (808nm–1550nm) and VCSEL arrays for 3D sensing, LIDAR, and optical interconnects.

Silicon Photonics & CPO

Co-packaged optics engines, silicon photonics ICs, and optical I/O solutions for high-density switches and AI clusters.

Optical Transceivers & AOCs

400G/800G QSFP-DD/OSFP modules, active optical cables, and custom optical engines for data center interconnects.

Laser Drivers & CDR

Low-jitter laser drivers, integrated CDR circuits, and linear TIAs for coherent optics and short-reach links.

Photonics Insights & Technical Resources

Contact Tlaletso Global Photonics

We provide custom laser diodes, VCSEL arrays, DFB lasers, drivers, CDR, modulators, TIAs, co-packaged optics, silicon photonics, LPO, transceivers, and AOCs.
From prototype to mass production, our team ensures premium quality and technical support.

23 Photonics Avenue, Techno Park, Stellenbosch, 7600, South Africa

+27 63 148 2975  |  +27 63 148 2975  |  [email protected]