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Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Hence, the bridge must be regularly inspected and maintained for the benefit of its users. There are three levels of inspection: 1.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. From the diagram above, we can see how the process unfolds.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. WHY WE TEST CONCRETE SRTRENGTH AFTER 28 DAYS? Tweet Why do we test concrete compressive strength after 28 days?
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Nominal Mixes In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Cracks in concrete beams due to increased shear stress 2. Cracks in concrete beams due to corrosion or insufficient concrete cover 3.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Depending on how big or complicated the pour is, the inspection may just take few minutes or it could take hours.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. The size of movement depends upon the change in temperature and the coefficient of thermal expansion o f concrete.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Use of Precast Concrete in frames: There are two main types of precast building frame.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. The benefits of using steel fibres in concrete are as follows: 1.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Cracks in reinforced concrete columns due to Steel Corrosion (cracks parallel to steel bars) 2. Cracks in reinforced concrete columns due to shrinkage of concrete 3.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. This type of shrinkage is caused by the loss of moisture from the cement paste constituent, which can shrink by as much as 1% per unit length.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. It has many advantages when compared to the normal conventional concrete. Fly ash is considered as one of the waste industrial product that cannot be easily disposed.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Water within the hardened cement paste is forced to more as a result of the applied load.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. These are: Mild exposure Moderate exposure Severe exposure Very severe exposure, and Extreme exposure.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. There are two ways of overcoming this problem: Embed another material in the concrete which is strong in tension – reinforced concrete Remove the tension altogether – by arching or prestressing.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. This method is used where large quantity of concrete work is involved at greater height, where other means of transporting is not easy to do.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. times the standard deviation; and 2) 0.80
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. The individual components are prefabricated off site then taken to site where they are erected.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. WHAT IS PRECAST CONCRETE? Tweet Precast concrete is cast under factory controlled conditions and not erected on site until it is fully hardened.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Procedure for measuring bulk density of concrete is as per IS 1199 – methods of sampling and analysis of concrete.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. The aggregate is more rigid than the cement paste and will therefore deform less (i.e. have a lower strain) under the same applied stress.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. When concrete is fresh and in its liquid state it must be restrained within a mould in order for it to set in its required shape. Formwork is the term used to describe this mould.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Sulphate attack in concrete foundation and cement mortar below ground level. Cracking in walls in line of weakness in structure. Clayey soil with high sulphate content.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. This method is also used to find out 28 days compressive strength of concrete in 28 hours. (As
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. The different materials are used according to their strengths and weaknesses to provide simple, buildable and competitive high-quality structures that offer consistent performance.
Sun, 30 Sep 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Codes of practice impose limits on horizontal movement or sway.
Mon, 1 Oct 2012 About Jobs Connect Groups Forums Toolbar SMS Alerts RSS Feed Search The Constructor Subscribe by E-Mail to receive latest updates. Prestressed Concrete Piles CLASSIFICATION OF PILES LOAD ON PILES NEGATIVE SKIN FRICTION ON PILES Can foundation Piles be welded, if yes what is the welding procedure to be followed?
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