Civil Engineering

Strength of concrete is tested by destructive testing of concrete test core samples that are taken at the time the concrete is poured. The test cores are about 7" diameter x 16" tall plastic containers. A number of samples are taken. One will be tested at 7 days, another at 28 days. A test report is provided to the firm responsible for paying the bill. The testing method is: place the core sample (removed from the plastic container), in the test machine; the machine will compress the sample until it breaks. A gauge measures the force applied and at what point it breaks.

Concrete usually breaks at 30-40% higher than the minimum specified, because the concrete company has to guarantee the concrete strength. Concrete strength is specified as: 2500 pound, 3000 pound, 4,000 pound, 6000 pound concrete. Sidewalks and non load bearing loads use the lighter weight concrete, bridges and buildings carrying loads will use a higher strength concrete. The strength is adjusted by adding or subtracting the percentages of the raw materials in the mix; limestone, water, sand, and mortar mix.

80mm

Yes, it can improve the bearing capacity but the extent has to be seen with other conditions like soil, mode of filling, treatment given. In fact this was done in delhi to counter site conditions.

Distribution of soil particles for identifying the type of soils ie., wherther it is well graded or uniform graded or poorly graded soil.And also fine sand, medium sand coarse sand or fine gravel, medium gravel, coarse gravel etc.

For plain cement concrete, the aggregate used is of size 20 mm. For RCC structures, it is 40mm and for roads, it is 80mm

It is the bearing capacity in N/mm2 when tested on 21 day on a hydraulic testing m/c When we tested this grade concrete cubes on 28th day the compressive strength value have to come 35 N/mm2.

Only if it is wraped pipe -- And prime and wrap fittings also and install a annode

making sure your annode is lower than your pipe

no.

There are some disadvantages to nitrogen, especially in inflation. Two disadvantages include the expense of nitrogen, and the fact that more tire maintenance will be needed if nitrogen is used.

Cementech Builders and Developers is one of the best home builders in Thrissur, offering a host of services including construction of independent house and villa projects. Established in 1998 by Mr. P.A Abdul Salam with a legacy of 25 years of experience in bringing together your dreams into reality, today the company’s name has become synonymous with top-notch construction services in Kerala.

For single family home construction, the stages are as follows:

clear site, set form boards, underground plumbing/hvac/electric, foundation makeup (hardware, mesh, sand, etc), pour concrete, framing, windows, hvac rough, plumbing topout, electric rough, low-volt rough, dry-in, roofing, insulation, stucco, drywall, garage door, trim carpentry, paint, cabinets, countertops, hard flooring, trims-(hvac, plumb, electric, and low-volt), drywall/paint touchup, carpet, final grade, landscape.

This is obviously not a comprehensive list....inspections, municipal requirements, deliveries, local building specs, etc., will cause variances. This is a good general list, though, from someone who has done homebuilding training for builders nationwide.

Engineering economics is the application of economic techniques to the evaluation of design and engineering alternatives. The role of engineering economics is to assess the appropriateness of a given project, estimate its value, and justify it from an engineering standpoint.

Picture a beam cantilevered out from a wall with a weight hung off the outer end. The place it would need to resist bending the most is right next to the wall

A cubic metre (or 'stere' as it is correctly known ) is 35.1 cubic feet. -In wet asphalt concrete that weighs about 5,250 pounds - just over 2 and a half tons !

Remember K H D | d c m (kilo, hecto, deka, (liter, meter, gram), deci, centi, milli). Kiloliters are three places to the left of liters. So you have to move the decimal place three times to the left. You will get 1,000,000 L = 1,000 kL.

a simple definition " IT'S A COUPLE OF FORCE HAVING EQUAL MAGNITUDE BUT OPPOSITE IN DIRECTION & HAVING VERY LESS DISTANCE BETWEEN THEM"

A lot of stuff! You know.... like things! GO BRIDGES FOR CARRYING STUFF! (and things!)

The question, as stated, cannot be answered sensibly. A cubic metre is a measure of volume, with dimensions [L3]. A tonne is a measure of mass, with dimensions [M]. The two measure different things and basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.

I have entered all the items in excel and linked all the work sheets. Whenever the rates of material / labour / fuel change, you just have to change it in one place only and it is taken care automatically. You can contact me for getting a copy of it. My id is ram7091@yahoo.com. I have worked for many days for incorporating all the details as per CPWD 2007 Manual and linking all the sheets. It is not possible for me to give it at free of cost.

Apart from bridge building, arches are commonly used for doorways/openings. Throughout history arches have been used to spread vertical loads to create openings. Examples range from small garden arches to the Colosseum.

bricks from black cotton soil

upto M25 it is nominal mix but after that are the design mix which need to becalculated.....