Construction - concrete pavement, Civil Engineering


Construction is usually done by one of the three methods:

(a) Manual method, providing steel or wooden forms, pouring concrete and compacting by means of needle and vibrating screeds, and giving the texture by brushing.

(b) Fixed form paver, which has spreader, vibrator, texturing unit and membrane curing compound sprayer, the whole unit moving on fixed forms formed by steel channels.

(c) Slip form paver, which is the latest technique, requiring no fixed forms, the alignment, grade and thickness controlled by electronic sensors. The equipment also inserts dowel bars, imparts texture, cuts the joints and applies the curing compound.

In all the methods, concrete is mixed in a weigh batcher and mixer. The aggregates of various sizes are added as per a job mix formula.

The joints are sealed with a sealant. Modern practice is to seal with cold poured sealants like polysulphide or silicone.

Curing is done by initial application of curing compound followed by watering over wet hessian for 14 days.

Traffic is allowed only after concrete has attained the desired strength, which may be after 21-28 days.

Posted Date: 1/22/2013 4:57:46 AM | Location : United States

Related Discussions:- Construction - concrete pavement, Assignment Help, Ask Question on Construction - concrete pavement, Get Answer, Expert's Help, Construction - concrete pavement Discussions

Write discussion on Construction - concrete pavement
Your posts are moderated
Related Questions
i want the meaning of crete

Question-What are three key types of r einforcement used in pre stressing ?   Answer- (i) Spalling reinforcement - Spalling stresses are established behind loaded

Q. Differences between open shield and closed shield? Open shield type TBM refers to those providing lateral support only. They can be further classified into single shield and


Define NPDES Sampling Requirements? The sampling needs under NPDES are given at 40 CFR Part 122, as part of the needs for applying for an NPDES discharge allow. The needs are b

A concrete wall form tie with an ultimate strength capacity of 2,400-lbs is designed for use in a concrete wall form with an 18-in center to center spacing. During formwork inspect

Explain the Methods of Underwater Inspection? There are three common methods of carrying out underwater inspection of bridge elements. a)  Wading inspection b)  Scuba div

A heavy equipment rental company uses a high interest rate of 30% for the rental of a specialty heavy haul dump truck.  The net annual profit for this investment is most nearly:

Q. Explain Gap Survey and adjustment of Gap? Gap survey and rectification of gaps is to be carried out, in stretches where track develops excessive creep jammed joints, sun kin

Q. Protection of line in case of ‘STOP DEAD RESTRICTION' for carrying out a work of short duration on a single line section on a B.G. route  Ans. Protection in block sectio