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Patiala, India

Thapar University, formerly Thapar Institute of Engineering and Technology, was founded in 1956 by Karam Chand Thapar and is situated in Patiala. Thapar University has grown in size and activities during the last five decades of its existence. It was granted full autonomy and the status of a University in 1985 by the UGC. It was ranked #28 by the Outlook India Top Engineering Colleges of 2012. It was ranked #5 by the limited participation CSR-GHRDC Engineering Colleges Survey 2011.The Thapar University is today recognized among the leading privately managed engineering institutions of the country. NAAC, an Autonomous Institution of UGC, has reaccredited Thapar University and award A Grade. On 24th November, 2014, Thapar University signed an agreement with Trinity College, Dublin as part of its efforts to impart global standard education at its campus in Patiala. Wikipedia.

An experimental program was carried out to study the properties of self-compacting concrete (SCC) made with coal bottom ash. The mixes were prepared with three percentages (0, 10, 20 and 30) of coal bottom ash as partial replacement of fine aggregates. Properties investigated were; slump flow, J-ring, V-funnel, L-box and U-box, compressive strength, abrasion resistance, rapid chloride permeability, water absorption, and sorptivity. Tests for compressive strength, abrasion resistance, chloride permeability were conducted up to the age of 365 days whereas water absorption and sorptivity tests were conducted up to the age of 28 days. Test results indicated that SCC mixes developed 28-day compressive strength between 25.8 and 35.2 MPa. SCC mixes made with bottom ash exhibited very low chloride permeability resistance (between 381 and 800 C) at the age of 90 and 365 days respectively. Abrasion resistance, water absorption and sorptivity of SCC mixes increased with the increase in bottom ash content at a particular age, however, it decreased with increase in age. © 2013 Elsevier Ltd. All rights reserved. Source

Siddique R.,Thapar University
Materials and Design | Year: 2011

An experimental program was carried out to study the properties of self-compacting concrete (SCC) made with Class F fly ash. The mixes were prepared with five percentages of class F fly ash ranging from 15% to 35%. Properties investigated were self-compactability parameters (slump flow, J-ring, V-funnel, L-box and U-box), strength properties (compressive and splitting tensile strength), and durability properties (deicing salt surface scaling, carbonation and rapid chloride penetration resistance). SCC mixes developed 28day compressive strength between 30 and 35MPa and splitting tensile strength between 1.5 and 2.4MPa. The carbonation depth increased with the increase in age for all the SCC mixes. Maximum carbonation depth was observed to be 1.67mm at 90days and 1.85mm at 365days for SCC with 20% fly ash content. Also, the pH value for all the mixes was observed to be greater than 11. Deicing salt surface scaling weight loss increased with the increase in fly ash content except with mix containing 15% fly ash. At 365days age, the weight loss was almost consistent for all percentages of fly ash varying between 0.525 and 0.750kg/m2. SCC mixes made with fly ash exhibited very low chloride permeability resistance (less than 700 and 400 Coulomb) at the age of 90 and 365 days respectively. © 2010 Elsevier Ltd. Source

Siddique R.,Thapar University
Resources, Conservation and Recycling | Year: 2012

Solid waste management is the prime concern globally due to ever increasing quantities of waste materials and industrial by-products. Scarcity of land-filling space and because of its ever increasing cost, recycling and utilization of industrial by-products and waste materials has the only option. There are several types of such materials. The utilization of such materials in concrete not only makes it economical, but also helps in reducing disposal concerns. One such material is wood ash (WA). Wood ash (WA) is the residue generated due to combustion of wood and wood products (chips, saw dust, bark, etc.). It is the inorganic and organic residue remaining after the combustion of wood or unbleached wood fiber. This paper details about the physical, chemical, elemental and mineralogical composition of wood ash. It highlights the influence of wood ash on the slump, water absorption, compressive strength, splitting tensile strength, flexural strength, freezing and thawing resistance, and shrinkage of concrete. It also deals with the leaching behavior of wood ash. © 2012 Elsevier B.V. All rights reserved. Source

Jiwari R.,Thapar University
Computer Physics Communications | Year: 2012

In this paper, an efficient numerical scheme based on uniform Haar wavelets and the quasilinearization process is proposed for the numerical simulation of time dependent nonlinear Burgers' equation. The equation has great importance in many physical problems such as fluid dynamics, turbulence, sound waves in a viscous medium etc. The Haar wavelet basis permits to enlarge the class of functions used so far in the collocation framework. More accurate solutions are obtained by wavelet decomposition in the form of a multi-resolution analysis of the function which represents a solution of boundary value problems. The accuracy of the proposed method is demonstrated by three test problems. The numerical results are compared with existing numerical solutions found in the literature. The use of the uniform Haar wavelet is found to be accurate, simple, fast, flexible, convenient and has small computation costs. © 2012 Elsevier B.V. All rights reserved. Source

The static nucleus-nucleus potential and the energy-dependent nucleus-nucleus potential are used to address the sub-barrier fusion reactions. Thestatic nucleus-nucleus potential systematically fails to recover the experimental data of 32;36 16S+90 40Zr systems. However, the energy-dependent Woods-Saxon potential model (EDWSP model) in conjunction with the one-dimen-sional Wong formula accurately addresses the sub-barrier fusion enhancement of these systems. The role of the inelastic surface excitations of collision partners in the fusion dynamics is entertained within the context of coupled channel calculations performed by using coupled channel code CCFULL. It is worth noting here that the energy dependence in nucleus-nucleus potential simulates the effects of inelastic surface excitations of colliding nuclei in the sub-barrier fusion enhancement of 32;3616S+90 40Zr systems. Source

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