Basic Electrical Symbols

Basic Electrical Symbols – Common Basic electrical symbols like earth electrode, cell, battery, source, ideal source, resister, variable resister, pre-set resister, attenuator, capacitor, antenna, diode LED, crystal are included here. Earth electrode is a metal plate, water pipe, or other conductor of electricity partially buried in the earth so as to constitute and provide a […]


TIPS Create a new block on layer 0 so that the block will use the layer and properties of the current layer it is inserted on. Text can be set to colour white. Set ATTDIA to 1 to use dialog box with block attributes or 0 to use command line. AutoCAD 2006 allows you to […]

Top 10 apps for construction workers

All smartphone applications are getting into the construction industry with some innovative solutions for all related professionals. Certainly, smartphone apps are leading the way providing solutions, and mobility on the go to construction professionals.The following list can be considered the hottest and best apps available for the construction professional. Some of these apps are so powerful […]

A Guide to Choosing Nails for Your Project

Types of Nails Every nail used in construction has its own application and knowing how to select the right one can save you money. Nails are designed especially for materials and their intended use and choosing the right one might be the difference between a successful project or some claim in the future. Today nails […]

Types of Construction Joints in Concrete

What Are Concrete Joints? Concrete joints are used to compensate when concrete expands or shrinks with changes in temperature. Concrete joints are normally used to prevent cracks when the concrete shrinks by creating forming, tooling, sawing and placing joint formers. The pre-planned cracks will provide a better finish concrete product and will be formed in […]

Requirements for Shrinkage and Temperature Reinforcement For Footing and Slabs

Hardening of concrete always associate with change in volume resulting shrinkage stresses. It is advisable to minimize such shrinkage by using concretes with the smallest possible amounts of water and cement compatible with other requirements, such as strength and workability, and by thorough moist-curing of sufficient duration. However, no matter what precautions are taken, a […]


When it becomes impossible to provide the suitable surface foundation for a structure; the use of pilefoundations becomes necessary, this situation arose from either the soil condition or the order of bottom layers, the nature of the loads transferred to the soil or the nature of the site and operational conditions Many factors prevent the […]