All materials, including concrete expand or contract with the increase or decrease in temperatures. If suitable arrangements are not ensured for the expansion and contraction of concrete due to the temperature changes, cracks may occur. Concrete is not an elastic substance, and therefore it does not bend or stretch without failure. This concrete characteristic is…
If the theory of consolidation, presented in the previous chapters, were a perfect description of the physical behaviour of soils, it should be rather simple to determine the value of the coefficient of consolidation cv from the data obtained in a consolidation test. For instance, one could measure the time at which 50 % of…
Soil stabilization is the alteration of soil properties to improve the engineering performance of soils. The properties most often altered are density, water content, plasticity and strength. Modification of soil properties is the temporary enhancement of subgrade stability to expedite construction. Class C fly ash and Class F-lime product blends can be used in numerous…
Computer models are useful in structural analysis, but are no substitute for laboratory testing. An important facet of structural testing and design, field and laboratory evaluation of engineering materials provides invaluable design and forensic information for structural engineers. The Need For Structural Testing In this age of computer modeling and analysis one might begin to think that structural testing…
· Take reusable bags to the store when shopping · Reduce or eliminate the use of paper plates and cups · Store leftover foods in reusable containers instead of single use plastic bags or Polystyrene foam containers · Reduce or minimize use of plastic bags and Polystyrene foam · Donate unwanted, slightly used clothing, furniture and other household items to…
Tilt up concrete construction process is used for building of schools, office buildings, houses etc, ranging from single storey to multiple story buildings. The wall panels can be planned to droop inwards when damaged, thus minimizing the risk of collapse. What Is Tilt Up Construction In this technique, concrete components are created on a concrete block placed normally…
Bridges have been used since ancient history though the technique of binding logs has been replaced by modern materials shaped into well-designed structures to resist applied loads. Here are the different types of bridges that exist in the world today History Of Bridges Different types of bridges have been constructed since ancient times. These bridges were simple…
If you have good civil engineering skills and entrepreneurial or business inclination, becoming an independent builder or contractor can be highly exciting and fruitful option for you. It requires lots of passion, motivation, determination and zeal to become a successful builder and contractor. Career as Builder and Contractor If you have good civil engineering skills…
Engineers who practice green project management techniques will be very much aware of the effects that their projects can have on the ecology and the environment. Good engineers will have plans to mitigate these effects even before the first spade of soil is turned over. Land and Urbanization Rapid urbanization and industrialization since the turn…
Every family needs a building to reside. Apart from residential purposes buildings are required for educational, institutional, business, assembly and for industrial purposes. Buildings are required for the storage of materials also. Elements of a building The following are the basic elements of a building: 1. Foundation 2. Plinth 3. Walls and columns 4. Sills, lintels and chejjas 5. Doors…