Repair Work Services & Solution

Concrete Repair-This involves patch work fixing of specific weak zones.

The different kind of weak zones are as follows-

• Cold joints– Cold joints are formed primarily between two batches of concrete where the delivery and placement of the second batch has been delayed and the initial placed and compacted concrete has started to set. The full knitting together of the two batches of concrete under vibration to form a homogeneous mass is therefore not possible, unlike the compaction of two fresh workable batches of concrete. This could be a potential plane of weakness.
• Construction Joints-are made where the concrete placement operations end for the day or where one structural element is cast against previously placed concrete. These joints allow some load to be transferred from one structural element to another through the use of keys or (for some slabs and pavement) dowels. Note that the construction joint extends entirely through the concrete element.
• Honeycomb/voids– develop due to lack of proper compaction.
• Cracks are a result of to improper mixing rations or lack of adequate curing resulting in entry of water.
• Tie rod Holes– is a result of shuttering boards held together during concrete pour. These are very common spots of leaks.

Pin Holes- These are imperfection in the concrete surface caused due to excess air entering into the mix or improper de shuttering.

All the above can be rectified/ treated using few simple methods. The course of treatment depends on the intensity of the leakage.

Intensity of moisture entry is classified into 3 major groups-