i-manager's Journal on Civil Engineering (JCE)


Volume 4 Issue 4 September - November 2014

Research Paper

Strength and Durability Characteristics of Stabilized and Compressed Laterite Bricks

Shanmuka K.N* , Manjunath. K S**, Prahallada M.C.***
* Assistant Professor, Department of Civil Engineering, Smt. Kamala and Sri Venkappa M. Agadi College of Engineering and Technology, Karnataka, India.
** Professor, Department of Civil Engineering, Malnad College of Engineering,Hassan, Karnataka, India.
*** Professor, Department of Civil Engineering, Christ University, Bangalore, Karnataka, India.
Shanmuka.K.N., Manjunath.K., and Prahallada.M.C. (2014). Strength and Durability Characteristics of Stabilized and Compressed Laterite Bricks. i-manager’s Journal on Civil Engineering, 4(4), 1-6. https://doi.org/10.26634/jce.4.4.3084

Abstract

Utilization of laterite soil as building material has become a source of concern to all due to its effect on the social, economy and environment factors. Rising population in developing nations like India has led to the demand and effective utilization of these gifted materials in construction of houses, roads and others. This paper is aimed at examining the properties of laterite soil for sustainable buildings. Hence in this experimental investigation, an attempt has been made to study the suitability of laterite soil in the preparation of compressed laterite bricks with the addition of different percentages of cement. Dry compressive strength, wet compressive strength and water absorption were found out on the prepared specimens. The results show that the compressed laterite bricks of laterite soil with 7% addition of cement possess the maximum compressive strength with less absorption of water.

Research Paper

Acid Resistance of High Volumes of Slag Concrete

Vijaya Gowri T * , P. Sravana**, P. Srinivas Rao***
* Assistant Professor, B.V. Raju Institute of Technology, Narsapur, Medak(Dist.), Telangana State, India.
** Professor, Civil Engineering Department, Jawaharlal Nehru Technological University, Hyderabad, India.
*** Professor, Civil Engineering Department, Jawaharlal Nehru Technological University, Hyderabad, India.
Gowri,V.T., Sravana.P., and Rao,S.P. (2014). Acid Resistance of High Volumes of Slag Concrete. i-manager’s Journal on Civil Engineering, 4(4), 7-17. https://doi.org/10.26634/jce.4.4.3085

Abstract

This paper presents durability of high volumes of Slag Concrete, exposed to Hydrochloric acid, Sulphuric acid and Sodium Sulphate. In the present investigation, high volumes of Slag Concrete of 100mm cubes of eight mixes were cast and cured for 28 days. The cubes were immersed in distilled water with 10% of Hydrochloric acid, 10% of Sulphuric acid and 10% of Sodium Sulphate separately. The durability studies of High Volumes of Slag Concrete were conducted at 28 days, 90 days, 180 days and 360 days. The results obtained are presented and compared between different mixes.

Research Paper

Explicit Equation for Settling Velocity of Particle

Manish Kumar* , Shri Ram**
* Post Graduate Student, Department of Civil Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
* Associate Professor, Department of Civil Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Kumar,M., and Shriram. (2014). Explicit Equation for Settling Velocity of Particle. i-manager’s Journal on Civil Engineering, 4(4), 18-25. https://doi.org/10.26634/jce.4.4.3086

Abstract

The settling velocity of the particle is an important parameter in the area dealing with sedimentation engineering, chemical engineering and environmental engineering. A lot of work has been done by researchers on the determination of expressing settling velocity relation, and as a result lots of relations had come to existence. The major disadvantage with relation is that they cannot come to implant in engineering applications, as most of them hold one or other limitations. In this work, a settling velocity relation has been proposed which is applicable to all ranges of Reynolds number.

Research Paper

Parametric Study of a Simply Supported Composite Plate Using Finite Element Method

P.Deepak Kumar* , Ishan Sharma**, P.R. Maiti***
* Under graduate Student, Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, India.
** M.Tech. Supervisor, Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, India.
*** Assistant Professor, Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, India.
Kumar,D.P., Sharma,I., and Maiti.P.R. (2014). Parametric Study of a Simply Supported Composite Plate Using Finite Element Method. i-manager’s Journal on Civil Engineering, 4(4), 26-33. https://doi.org/10.26634/jce.4.4.3087

Abstract

Composite Materials are materials with two or more distinct macroscopic phases which together result in a structure with properties which are not achievable with any of the individual constituents. Fibre-reinforced composites, specifically those based on fibre reinforced polymers, combine the best of the materials inheriting high stiffness and strength. Laminates are composites in which different layers of materials give them a specific character to perform a particular function. Composite laminates have been used increasingly in a variety of industrial areas due to their high stiffness and strength-to-weight ratios, long fatigue life, resistance to electrochemical corrosion and other superior material properties of composites. Laminated composite plate structures find numerous applications in aerospace, military and automotive industries. An accurate understanding of their structural behaviour is necessary, such as deflections and stresses for tailoring strong, reliable multi-layered structures. The objective of this research is to model a composite plate using Finite Element Method for further parametric study. A comparison of solutions obtained from Finite Element Method is made with Classical results. The finite element model subjected to uniformly distributed load is used to investigate the effect of laminate configuration on the deflection of composite plates. To get a better picture, failure in composite plate is analysed using Tsai-Hill Criteria. The numerical results from stress and deflection criteria show that design of composites is usually governed by deflection rather than strength

Research Paper

Inexpensive Method of Fluoride Removal of Water Using Cost Effective Adsorbents

Gayathri.G* , Prahallada M.C.**
* Visiting Faculty, Department of Civil Engineering, Christ University Faculty of Engineering, Bangalore, Karnataka, India.
** Professor, Department of Civil Engineering, Christ University Faculty of Engineering, Bangalore, Karnataka, India.
Gayathri.G., and Prahallada.M.C. (2014). Inexpensive Method of Fluoride Removal of Water Using Cost Effective Adsorbents . i-manager’s Journal on Civil Engineering, 4(4), 34-41. https://doi.org/10.26634/jce.4.4.3088

Abstract

The main objective of the experimental investigation was to develop inexpensive and safe methods of fluoride removal. The adsorbents used in this investigation are amla powder, tamarind powder, neem powder; brick powders, clay with sand which were inexpensive and nontoxic materials available easily in nature and locally at village/rural level. Some of the adsorbents are very effective in removal of fluoride ions,and can be used as fluoridating agents but they impart color and turbidity to the treated drinking water. Among all adsorbents, amla powder was found to be the most cost effective in adsorbing fluorine ions. Tamarind and brick powder were also found to be efficient adsorbents to certain extent. Clay mixed with different percentage of sand was also capable of adsorbing fluoride ions at lower pH value. Both batch and column experiments were conducted, and fluoride removal capacity was studied with respect to time and flow rates lit/day respectively. Finally, it has been observed that adsorbents were definitely having good adsorbent capacity, pH and fluoride concentration and are well within permissible limits.