The Mackinaw Bridge, the Millau Viaduct, the Beipanjiang River Railroad Bridge. Ever wonder how these bridges were assembled to cover such amazing and difficult spans? While there is no single construction method employed, there are several fundamental techniques typically used. Making The Connection Bridges of all types are vital links in infrastructure development. Beam, arch, suspension, truss, cable stayed,…
The first ever 3D-printed steel bridge has opened in Amsterdam, the Netherlands. It was created by robotic arms using welding torches to deposit the structure of the bridge layer by layer, and is made of 4500 kilograms of stainless steel. The 12-metre-long MX3D Bridge was built by four commercially available industrial robots and took six…
A number of civil engineers starts their career as construction supervisor. This is one of the toughest and most important jobs for the civil engineers on their path of achieving higher goals. Careers in Civil Engineering: Construction Supervisor One of the most common jobs of the civil engineers is the construction supervisor. This is also…
We can all agree that loss of life or injuries are always at the forefront of our minds when we think about risk management. But the safety of structures themselves is an important risk that requires our attention. The failure of structures also contributes towards considerable commercial cost, loss of confidence, higher PI premiums and…
Properties Of Hardened Concrete Flexural Strength Test Arrangement The following are the properties of concrete in its hardened state, used by the designer during design process of reinforced concrete structure. 1. COMPRESSIVE STRENGTH The characteristics strength is defined as the strength of concrete below which not more than 5% of the test results are expected to…
Reinforced concrete is widely used for construction on a large scale due to its desirable mechanical properties. Types of steel and non-steel concrete reinforcement are described. Corrosion has an adverse effect on the embedded steel if structures are not properly designed and constructed. What is Reinforced Concrete? Reinforced concrete, or RCC, is concrete that contains…
Portland Pozzolana Cement 1. POZZOLANA Pozzolana is a volcanic powder found in Italy near Vesuvius A pozzolanic material is essentially a siliceous or aluminous material which possess no cementitious properties. But it has the property when it combined with lime to produce a stable pozzolana compound it has definite cementitious properties. In the presence of water…
Dampness prevention methods: The following are the precautions to be taken to prevent dampness in buildings, before applying the various techniques. 1. The site should be located on high ground and well-drained soil to safe guard against foundation dampness 2. All the exposed walls should be of sufficient thickness to safeguard against rain protection (minimum 30 cm)…
Site Exploration Program The knowledge about the site forms a vital role in the safe and economic development of a site. A thorough investigation of the site is an essential preliminary to the construction of any civil engineering works. Public building officials may require soil data together with the recommendations of the geotechnical consultant prior…
Needle Vibrator Needle type concrete vibrator These concrete vibrators are also referred to as poker or immersion vibrator. These are extensively used in building industry. A needle vibrator consists of a cylindrical casing made of steel and is vibrated by means of a flexible drive with an outer tube run from an operating machine which…