Construction - concrete pavement, Civil Engineering

Construction:

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

Define Safety Precautions for Underwater Inspection of Bridge? The working agency should have its own diving safety manual, which should be strictly followed. This manual shoul

Q. Illustrate Bituminous surfacing over concrete structures? Usage of bituminous surfacing over concrete structures (for instance existing concrete roads) is widespread to impr

Distance ABC was measured with a 30m. Chain tested and found to be correct in the beginning of the work .after measuring AB=1.2 km chain was found to be 10 cm. To long chaining was

Basic Keywords related to road materials: Sub-grade     :            The portion of road embankment immediately below the pavement. Soil Classifications :            A sy

One pump lifts storm water from a storage tunnel wet well a constant vertical distance of 150 ft. The equivalent length Le of the 14 in diameter piping is 1,000 ft. Pressure drop d


Explain the term - Characteristic Strength The strength of  a material below which not more than 5 percent results are expected to fall is considered as the characteristic stre

How the stabilization of black cotton soil was done in field? what are the methods to do that?