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Feb 26, 2016 / Haseeb Jamal -

5 Travel Myths You Need to Stop Believing Right Now

Feb 26, 2016 / Haseeb Jamal -

Canal Comes Alive with Lighted Boat Parade.

Tests on Concrete

SAMPLING The first step is to take a test sample from the large batch of concrete. This should be done as soon as discharge of the concrete commences. The sample should be representative of the concrete supplied. The sample is taken in one of two ways: For purposes of accepting or rejecting the load: Sampling after 0.2 m3 of the load has been poured. For routine

How to Write Technical Construction Proposal

A document which persuades its readers to accept the writer's idea is called a proposal. The RFP asks for both a technical proposal and a cost proposal. There are two kinds of proposals. In external proposal, one firm responds to a request from another firm on the government for a solution to a problem. It ranges from lengthy (100 pages or more) to a short (4-5 pages). In an

How Precipitation Occurs

Precipitation takes place when a body of moisture cools sufficiently for it to become saturated in water droplets and ice crystals, upon condensation. Air may be cooled in a number of ways i.e. By meeting of air masses of different temperature. By coming into contact with a cold object such as ground (mountains). The most important mechanism is uplift of air, as air

How to Measure Rainfall / Precipitation

All the forms of precipitation are measure on the basis of vertical depth of water that would accumulate on a level surface of precipitation remained where it fell. In metric system precipitation is measure in millimeters and tenths. Any open receptacle with vertical side can be used as a gauges for measuring rainfall. These refined receptacles with vertical side can be

How to Estimate Missing Precipitation Data

Some precipitation stations may have short breaks in the records because of absence of the observer or because of instrumental failures. It is often necessary to estimate this missing record.

How to Design Barrage

The Barrage and the Head Regulators of feeder channels and appurtenant structures will be designed on the basis of standard design criteria established for other barrages and allied structures, already constructed on the Indus River and its tributaries.

How Bond Strength can be Increased?

The pulling out of steel bars from concrete is resisted by the gripping action of concrete known as bond and the resulting stress is called bond stress. The resistance offered to slipping of bars is due to three factors: 1. The chemical adhesion between the two materials. 2. The friction due to natural roughness of bars. 3. The mechanical anchorage of the closely spaced

How to Design Dams

Dam should be feasible to construct e.g availability of labor, material, experienced and skilled personnel etc.

How to Build Small Dams

Dams built up on small scale by compacting successive layers of earth, using the most impervious materials to form a core and placing more permeable substances on the upstream and downstream sides. A facing of crushed stone prevents erosion by wind or rain, and a suitable spillway, usually of concrete, protects against catastrophic overflow of the dam. Small

Stopping Erosion of Natural Drainage Soil

Natural drainage pattern is the route through the rain/other water flows following the natural gradient till it reach some final outlet point where it meets a bit larger course of water. Sometimes the construction of new structures in the way of natural drainage causes its blockage which is needed to be avoided. When this drain water flows through its course it may cause the

How to Design a Bridge

The designer should have first seen and studied many bridges in the course of a long learning process. He should know what type of beam may be suitable in the available conditions, either a beam bridge an arch bridge or a suspended one. He should also know the influence of foundation conditions on the choice of spans and structural systems etc. hence, the designer

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