Use Of Hydrogen Isotopes In Ground-Water Studies

Use Of Hydrogen Isotopes In Ground-Water Studies

Use Of Hydrogen Isotopes In Ground-Water Studies Isotope Isotopes are variants of atoms of a particular chemical element, which have differing numbers of neutrons. Natural isotopes Synthetic isotopes Application Stable oxygen and hydrogen isotopes have been used in ground water studies to investigate – recharge, mixing, ground water/surface water interaction,  advective-diffusive transport,paleohydrogeologic interactions and to … Read more

Fibre Reinforced Concrete

Glass Fibres

Fibre Reinforced Concrete Need? PCC has low tensile strength, limited ductility and little resistance to cracking. PCC develops micro-cracks, even before loading. Addition of small, closely spaced and uniformly distributed fibres act as crack arresters. Fibre Reinforced Concrete is a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable … Read more

The Dynamic Analysis Of Structures

Dynamic analysis

Dynamic Analysis Of Structures Introduction to Dynamic Analysis Of Structures All real physical structures, when subjected to loads or displacements, behave dynamically.  The additional inertia forces, from Newton’s second law, are equal to the mass times the acceleration.  If the loads or displacements are applied very slowly then the inertia forces can be neglected and … Read more

Structural Dynamics and Degree of Freedom

SDOF

Structural dynamics and earthquake engineering 1. Define the concept of dynamic degree of freedom. Give some examples of single degree of freedom systems and multi degree of freedom systems. Answer: Dynamic degrees of freedom are a set of independent displacements/rotations that completely define the displaced position of the mass with respect to its initial position. … Read more

Building a Green Capital City – City of Madison

Building a Green Capital City: The Natural Step to Madison’s Sustainable Design and Energy Future The City of Madison, WI launched a program in 2004 to become a green capital city and a leader in sustainable design and energy. The city is leading by example and encouraging businesses and residents to follow suit. Madison adopted … Read more

Causes, Evaluation and Repair of Cracks in Concrete

Causes, Evaluation and Repair of Cracks in Concrete Cracks in concrete have many causes. They may affect appearance only, or they may indicate significant structural distress or a lack of durability. Cracks may represent the total extent of the damage or they may point to the problems of greater magnitude. Their significance depends on the … Read more

Concrete Properties and Mix Design | Mix Proportioning

Mix Design

Performance-Based Concrete Pavement Mix Design System Mix Design? It is the process of determining required and specifiable characteristics of a concrete mixture. Prescriptive approach (limits on materials). Performance approach (desirable characteristics). Mix design requirements are based on intended use, environment, etc.Mix design is the process of determining the quantities of concrete ingredients that meet the … Read more

Concrete Mix Design (Journal Paper)

Concrete Mix Design

Concrete Mix Design There are many methods of concrete mix design. But the British or American methods will not be applicable for our country, as the specific relationships constituting figures and tables are based on their materials. The IS 10262 recommends procedure for designing concrete mixes for general types of construction using the concreting materials … Read more

Unbonded Post-Tensioning System Technology in Building Construction

Unbonded monostrand tendon

Unbonded Post-Tensioning System Technology in Building Construction Introduction During the last three decades, unbonded post-tensioning has progressively become the predominant construction choice for commercial concrete buildings in the United States. The utilization of unbonded tendons is now standard practice for concrete structures. Because of their excellent performance record and their economical and versatile application, the … Read more