Contractor to continue concreting works, Civil Engineering

If on-site slump test fails, is it necessary that engineers allow a contractor to continue concreting works?

This is an extremely traditional question raised by many graduate engineers. In fact, there are two schools of idea regarding this issue.

The first school of thought is rather straightforward- contractor fails to fulfil with contractual requests and therefore as per G. C. C. Clause 54 (2) (c) engineer might order suspension of entitled to any claims of charge which is core concern for mainly engineers.
This is contractual power given to Engineer in case of any failure in tests essential by contract; although some engineers argue that slump tests are not as major as other tests similar to compression test.

The second school of thought is to let the contractor to continue their concreting works and later on request the contractor to prove that the finished works comply with other requirements as in compression test. This is based upon a belief that workability is mostly necessary to achieve design concrete compression strength. In case compression test also fails, contractor has to demolish and reconstruct works accordingly. In fact, this is a passive method of treating construction works and is not recommended since of following cause-

(i) Workability of freshly placed concrete is related not only to strength but also to stability of material. Still if in future compression test passes, failing in slump test point out that it might have adverse impact to stability of completed concrete structures.

(ii) In case compression test fails, contractor has to position extra time and resources to remove work and reconstruct them on one occasion again and this slows down progress of works significantly. Hence, present of such likely probability of occurrence, why shouldn't Engineer exercise his power to stop contractor and save these extra time and cost?


Posted Date: 12/6/2013 4:21:30 AM | Location : United States

Related Discussions:- Contractor to continue concreting works, Assignment Help, Ask Question on Contractor to continue concreting works, Get Answer, Expert's Help, Contractor to continue concreting works Discussions

Write discussion on Contractor to continue concreting works
Your posts are moderated
Related Questions
Cross-section of exogeneous tree

What are the functions of a column in a building? Ans) A column is used to handle the weight of the roof and/or the upper floors. Now days, many columns are used for decorative

Strength of Concrete at the Transfer Stage Concrete strength in the member at the transfer stage should conform to the design requirements. The frequency of the sampling and t

A piece of clay taken from a sampling tube has a wet weight of 1.553 N and volume of 95.3 cm 3 . After drying in an oven for 24 hours at 105°C, its weight 1.087 N. Suppose the spec

Define Concrete substruct - underwater inspection of bridges? Plain, reinforced, and pre-stressed concrete are used for construction of underwater elements. Since the majority

A retaining wall, 6 m high, retains dry sand with an angle of friction of 30° and unit weight of 16.2 kN/m 3 . Verify the earth pressure at rest. If the water table rises to the to

Q. What do you mean by Ozone Test? Some research and studies determined that the ozone test was unnecessary as this affects only the surface layer.  In un-stretched rubber, ozo

Specify the various methods of soil exploration and mention the circumstances under which each is best suited. What do you mean by undisturbed sample? Define with a neat sketch