Contractor to continue concreting works, Civil Engineering

Assignment Help:

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

Answer
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?

 


Related Discussions:- Contractor to continue concreting works

Explain the swell factor of soil, Explain the Swell Factor of Soil A so...

Explain the Swell Factor of Soil A soil's swell factor represents the fact that the volume of soil placed by nature in the ground is not the same as the volume of the same mass

Energy equation, find the pressure head at 2-2 if the rate of flow in pipe ...

find the pressure head at 2-2 if the rate of flow in pipe is 0.36m^3/s

State the short-term deflections, State the short-term deflections If  ...

State the short-term deflections If  short-term deflections are considered, the instantaneous deflection due to design loads may be calculated using elastic analysis based on t

State the term - constant eccentricity, State the term - constant eccentric...

State the term - constant eccentricity A pre-stressed concrete beam has a width of 300 mm and an overall depth of 450 mm. The permissible stresses in tension and compression du

Modern trends in transportation, Modern Trends in Transportation: Rapi...

Modern Trends in Transportation: Rapid urbanization that is taking place in India is putting severe strain on the road system. Modern systems like exclusive bus lanes, light r

Water or hydraulic horsepower (whp), Water Or Hydraulic Horsepower (whp) ...

Water Or Hydraulic Horsepower (whp) The work performed by a pump is a function of the head added by the pump (h A ), the flow rate required (Q) and the mass of the fluid (accou

Calculate benefit cost ratio of most cost effective device, A city is tryin...

A city is trying to decide which of two traffic devices to install. Device A costs $1000 and has useful life of five years.  Device A can be expected to result in $300 savings annu

Earth dam, earth dam design and its force

earth dam design and its force

What is the degree of consolidation, A saturated clay specimen is subjected...

A saturated clay specimen is subjected to a pressure of 240 kN/m 2 . After the lapse of a time, it is determined that the pore pressure in the specimen is 72 kN/m 2 .  What is t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd