Qualification: 
Ph.D, M.Tech, BE
mk_haridharan@cb.amrita.edu

Dr. Haridhran M. K. currently serves as Assistant Professor (Sr. Gr.) at the department of Civil Engineering, Amrita School of Engineering, Coimbatore Campus. He pursued his M.Tech (Structural Engineering) and Doctor of Philosophy from National Institute of Technology, Tiruchirappalli.

Other Credentials

  • Qualified in GATE with All India Rank of 645th in 2008
  • Obtained merit scholarship from MHRD during M.Tech. period (2008-2010) and PhD period (2012-2016).

Publications

Publication Type: Book Chapter

Year of Publication Title

2019

M. K. Haridharan and Natarajan, C., “Effect of Fire on Reinforced Concrete Slab—Numerical Simulation”, in Recent Advances in Structural Engineering, vol. 2, Singapore: Springer, 2019, pp. 493–505.[Abstract]


Buildings are often exposed to elevated temperature due to lack of fire safety, sabotages, etc. A recent survey about India’s risk says that fire has been rated among top three risks by most of sectors across India. The study investigates the influence of cooling condition on concrete slab exposed to fire. The variables considered for the study are thickness of slab 125 mm, retention period of one-hour and four-hour, subjected to temperature of 300, 400 and 500 °C, and two types of cooling regimes like air cooling and quench cooling. The slab which was exposed to temperature of 500 °C for four-hour duration had temperature of 143 °C at the unexposed surface which is marginally less than the allowable limit, but other slabs reveal good resistance to insulation. The reduction in flexural stiffness of concrete slab exposed to 500 °C for four-hour retention period was 28.67 and 37.89% for air cooled and quench-cooled specimens, respectively. The irrecoverable loss in flexural stiffness of concrete slab was influenced by the retention period, exposed temperature and cooling regimes.

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2015

R. N Babu, M. K. Haridharan, and Natarajan, C., “Behaviour of Two Way Reinforced Concrete Slab at Elevated Temperature”, in Advances in Structural Engineering, vol. 3, 2015, pp. 2285-2298.[Abstract]


The reinforced concrete slabs have experienced significant levels of stressing and cracking as a result of restrained thermal deformations. However, for evaluating the thermal strains in the slab, temperature distribution of the slab is required.Temperature distribution of the reinforced concrete slab varies from point o point. The temperature of unexposed concrete slab also rises due to the adjacent slab which is exposed to fire, even though concrete is having significant resistance for the propagation of fire. In this study, temperature distribution over the surface of concret slab is obtained using finite element computer program (ABAQUS). Two different cases are considered to estimate the heat propagation through slab. In the first case, slabis subjected to fire at its center region. In the second case, slab is subjected to fire at outer region means along the walls. Modelling is carried out to predict thetemperature distribution and thermal strains of concrete slab. The other parameters considered for this study are varying thickness of slab (100 and 200 mm) and exposed temperature (100, 200, 300 and 400 °C). The duration of exposure considered for the study is 4 h.

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Publication Type: Journal Article

Year of Publication Title

2018

G. Murali, Asrani, N. P., Ramkumar, V. R., Siva, A., and M. K. Haridharan, “Impact Resistance and Strength Reliability of Novel Two-Stage Fibre-Reinforced Concrete”, Arabian Journal for Science and Engineering, pp. 1-4, 2018.[Abstract]


Two-stage fibre-reinforced concrete (TSFRC) is a novel fibrous concrete that differs from the conventional fibre-reinforced concrete (FRC) in several aspects including its placement technique, implementation, fabrication methodology, and high coarse aggregate content. Consequently, the available data from the open literature on the behaviour of the conventional FRC exposed to falling weight collision may not be applicable to TSFRC. For instance, the impact strength performance of the conventional FRC is well documented; however, for TSFRC this has not been duly examined. For the first time, this study pioneers the concept of impact strength of TSFRC under falling weight collision. For this purpose, short crimped fibres and long hooked end steel fibres at 1.5, 3.0, and 5.0% dosage were used in two-stage concrete (TSC). To this end, seven different mixes were prepared and tested under falling weight collision as per ACI committee 544. In addition, a statistical analysis has been performed to analyse the scattered test results by Weibull distribution. For determining Weibull parameters, 20 probability estimators have been used, and the best estimators are taken for the reliability analysis. Based on the obtained Weibull parameters, the impact strength of TSFRC has been reported in terms of reliability. The results revealed that the ability of using higher fibre dosages allows achieving greater impact resistance properties for novel manufacturing TSFRC. Indeed, the TSC with steel fibre dosages exceeding 5%, can be produced easily thus making this innovative, yet simple to produce concrete, a strong contender in many construction applications. The two-parameter Weibull theory has been found to be adequately suitable for analysing the variations in the number of impacts that induces first crack and failure of all group of TSFRC specimens.

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2018

G. Murali, Neha P. Asrani, Arthika J, Karthikeyan, K., and M. K. Haridharan, “Probabilistic Fracture Energy Assessment of Natural Fibre Reinforced Concrete by Two Parameter Weibull Distribution”, International Journal of Engineering & Technology, vol. 7, 2018.[Abstract]


Fracture energy is the post-crack energy absorption ability of the material that represents the energy absorbed by the structure at the time of failure. Its analysis has gained importance and hence requires a powerfulmethod for its development. A two parameter Weibull distribution proves to be an efficient tool in analysing the scattered experimental test results. In this paper, the specific fracture energy of plain concrete and concrete reinforced with natural fibres of hemp, wheat straw and elephant grass are statistically analysed by two parameter Weibull distribution by using graphical method. For determining Weibull parameters, 21 equations have been used and the best equation is taken for the reliability analysis. A Weibull reliability curve is plotted, which shows the specific fracture energy at each reliability level. This curve enables an engineer to choose the fracture energy of a particular mix based on its reliability requirement and safety limit. Therefore, reliability curves are a pioneer in statistical analysis as they eliminate the time-consuming and costly experimental process. This method can be applied in areas with similar uncertainties.

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2018

R. Gayathri, Murali, G., Kathirvel, P., M. K. Haridharan, and Karthikeyan, K., “A four novel energy pattern factor method for computation of weibull parameter in impact strength reliability of fibre-reinforced concrete”, International Journal of Engineering and Technology(UAE), vol. 7, pp. 272-280, 2018.[Abstract]


Impact strength data is a noteworthy factor for designing airport pavements, civilian and military structures etc and it is ought to be modelled precisely. In order to achieve an appropriate modelling data, it is important to select a suitable estimation method. One such commonly used statistical tool is the two parameter Weibull distribution for modelling impact failure strength accurately besides the variations in test results. This study statistically commandsthe variations in the impact failure strength (number of blows to induce failure) of fibre reinforced concrete (FRC) subjected to drop hammer test. Subsequently, a four-different novel method for the computation of Weibull parameter (Shape parameter) based on the earlier researchers test results has been proposed. The accuracy of the proposed four novel method is demonstrated by comparing with power density method and verified with goodness of fit test. Finally, the impact failure strength of FRC is offered in terms of reliability. The proposed four NEPFM is very suitable and efficient to compute the shape parameter in impact failure strength applications. © 2018 Authors.

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2018

R. K. Prasad, Murali, G., Kathirvel, P., M. K. Haridharan, and Karthikeyan, K., “Experimental study on functionally graded steel fibre reinforced preplaced aggregate concrete”, International Journal of Engineering and Technology(UAE), vol. 7, pp. 456-458, 2018.[Abstract]


This study examines compressive strength of this functionally graded steel fibre reinforced concrete (FGFRPAC). A five mixes were prepared and tested in the present study. The first series of FGFRPAC were prepared and reinforced in three layers of 3%, 1.5% and 3% with crimped, hooked end. The second series were reinforced with 2.5% steel fibre equally in all the three layers. The average amount of fibre used in FGFRPAC specimen was 2.5% which is similar to the fibre dosage used in the second series were the fibres are equally spread in all the three layers. The gathered results revealed that employing FGFRPAC leads to more enhancement in compressive strength than conventional steel fibre reinforced concrete. © 2018 Authors.

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2018

R. Bharathi Murugan, Ajit Gayke, Natarajan, C., M. K. Haridharan, Murali, G., and Parthiban, K., “Influence of treated natural jute fiber on flexural properties of reinforced concrete beams”, International Journal of Engineering and Technology(UAE), vol. 7, pp. 148-152, 2018.[Abstract]


India is one of the largest producers of jute, its potential use in many branches of engineering should be developed for the prosperity of the nation. The recent trends in utilizing the natural fibers has increased due to its advantages over synthetic fibers due to low cost, low environment hazard and easy availability. The properties of the fiber is improved by treating the jute fiber with alkali and latex polymer. Since, very few studies been conducted using the treated jute fiber concrete, an experimental work was carried with 0.6% as optimum percentage of treated jute fibers based on the mechanical properties of concrete. The influence of flexural characteristics of concrete was compared with control beams and beams cast with fibers in whole area and also only in tension zone of beam for M20 and M25 concrete grade. The beams with fibers of whole area had better strength, stiffness characteristic than the control beam and the beam with fibers in tension zone only. The initial cracking load was increased by 12.92% and 11.23 % and ultimate load was increased by 6.94% and 7. 20% for the beams cast with fibers in whole area for M20 and M25 grade of concrete, respectively. © 2018 Authors.

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2018

G. Murali, Karthikeyan K., and M. K. Haridharan, “Statistical Scrutiny of Variations in Impact Strength of Green High Performance Fibre Reinforced Concrete Subjected to Drop Weight Test (Accepted)”, ReevistaRomana De Materiale-Romanian Journal of Mmaterials , vol. 48, no. 2, pp. 214-221, 2018.

2017

V. Sriram, R Prakash, K., Gunasekaran, M., M. K. Haridharan, Kothandapani, K., and K. Sireesha, “A new method to estimate Weibull parameter for the fatigue life of self compacting fibre reinforced concrete beams”, International Journal of Civil Engineering and Technology, vol. 8, pp. 326-331, 2017.[Abstract]


Fatigue life data is the important factor for designing, high rise buildings, bridge decks, rapid transportation systems and precast structural elements and it should to be modelled accurately. To attain a appropriate modelling data, it is vital to choose a suitable computation method. Two parameter Weibull distribution is frequently used statistical tool for modelling the flexural fatigue failure life exactly. In this article, a flexural fatigue failure life of self-compacting fibre reinforced concrete (FRC) were statistically commanded. Subsequently, a novel energy pattern factor method (NEPFM) has been proposed for the computation of Weibull shape parameter from the data of earlier researcher. The validity of the proposed NRPFM is verified with power density method and other researchers. The results revealed that the proposed NEPFM is appropriate and efficient to calculate the Weibull shape parameter for the flexural fatigue failure applications.

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2017

M. K. Haridharan, Natarajan, C., and Chen, S. - E., “Evaluation of residual strength and durability aspect of concrete cube exposed to elevated temperature”, Journal of Sustainable Cement-Based Materials, vol. 6, pp. 231-253, 2017.[Abstract]


The study emphasis the effect of elevated temperature on concrete cubes made with M20, M25, and M30 concrete grades. The other variables considered were temperature (100, 200, 400, and 600 °C), duration of exposure (1-h and 2-h) and two types of cooling methods. The mass loss is varied from 0.52 to 6.56% for various temperature and duration of exposure. The mass loss increases as the duration of exposure increased. The porosity ranges from 9.89 to 44.34% and it depends on grade of concrete and exposed temperature. The strength loss ranges from 3% at 200 °C to 57% at 600 °C for air cooled specimen. In quench cooled specimen the loss in strength varies gradually up to 200 °C but at 400 °C the loss in strength was 42%, while the loss was only 32% for air cooled specimen. The obtained residual compressive strength curve from this study was compared with strength curves proposed by various codes.

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2017

M. K. Haridharan and Natarajan, C., “Experimental study on thermo-mechanically treated rebar subjected to various thermal cycles”, Materials Today: Proceedings, vol. 4, pp. 9685 - 9689, 2017.[Abstract]


Spalling of cover concrete is a major concern for concrete elements subjected to elevated temperature, which result in direct exposure of rebar to elevated temperature. An experimental study was conducted on thermo-mechanically treated (TMT) rebar, for studying the influence of various heating – cooling process like the one occurring during fire accidents in infrastructure. The parameters considered are temperatures ranging from 100°C, 200°C, 300°C, 400°C, 500°C, 600°C, 700°C and 800°C and two types of cooling regimes like air cooling and quench cooling. The duration of exposure was maintained as two hours at the desired temperature. The different cooling condition had no major alteration in residual strength, stiffness and ductility of reinforcement for temperature below 400°C. In the case of temperature above 400°C to 800 °C, the yield strength was decreasing for air cooled specimen when compared with the quench cooled specimens but the air cooled specimen showed better performance in the ductility of reinforcement than the quench cooled specimen.

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2015

M. K. Haridharan and Natarajan, C., “Numerical simulation of damage in reinforced concrete slab subjected to elevated temperature”, International Journal of Earth Sciences and Engineering, vol. 8, pp. 242-248, 2015.[Abstract]


The strategy is to simulate and study the damage growth in reinforced concrete slab. Numerical model was developed using Finite Element analysis package ABAQUS. This study includes the effect of material degradation with respect to temperature and geometrical nonlinearity. The study was carried out on square slab subjected to an ISO temperature for a time period of 90mintues. Support conditions considered for the study were a) supports at all sides and b) Supports at two opposite sides. Analysis predicts the temperature distribution, thermal response, mechanical response and intensity of damage. The slab supported on all four edges had better performance than the member with supports on two opposite edges due to the formation of tension ring phenomenon which enhances the performance of load carrying capacity but large deformation was observed. The slab supported at four sides had better resistance to collapse than the supports at two opposite edges. The pinned support condition at all sides had deflection greater than the fixed condition due to the effect of thermal gradient which resulted in increased thermal bowing. In case of fixed boundary condition the material degradation was dominant than the defection but for pinned support both material degradation and deflection had equal contribution for the intensity of damage. Development of tensile member action in slabs was predicted by analyzing the intensity and nature of damage in the member. The effect of restraint, both translational and rotation influence the thermo-mechanical behavior of the member.

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2014

Rbabu N, M. K. Haridharan, and Natarajan C, “Temperature distribution in concrete slabs exposed to elevated temperature”, International Journal of Engineering Science Invention, vol. 3, no. 3, pp. 35 – 43, 2014.

2014

M. K. Haridharan and Natarajan C, “Performance and Damage Assessment Reinforced Concrete Slab exposed to Elevated Temperature”, International Journal of Civil Engineering, vol. 03, no. 05, pp. 7 -16, 2014.

2013

Sangluaia C, M. K. Haridharan, Natarajan C, and Rajaraman A, “Behaviour of reinforced concrete slab subjected to fire”, International Journal of Computational Engineering Research, vol. 3, no. 1, pp. 195-206, 2013.[Abstract]


The behavior of reinforced concrete slab exposed to fire is presented. Two stages of analysis is carried out using Finite Element package ABAQUS to find thermal response of structural members namely thermal analysis and structural analysis. In the first step, the distribution of the temperature over the depth during fire is dete rmined. In the next step, the mechanical analysis is made in which these distributions are used as the temperature loads. The responses of structure depend on the type of concrete and the interactions of structural members. The RCC slab were modeled to sho w the role of slab thickness, percentage of reinforcement, width of slab and different boundary condition when expose to fire loading. Effects for both materials in RCC slab at elevated temperatures are also evaluated.

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Publication Type: Conference Proceedings

Year of Publication Title

2017

K. Aneesha and M. K. Haridharan, “Ranking the Project Management Success Factors for Construction Project in South India”, IOP Conference Series: Earth and Environmental Science, vol. 80. p. 012044, 2017.[Abstract]


In Today’s construction industry, to achieve a greater advantage over the firms, success of each project and efficiency is required. Effective Project Management overcomes these types of challenges. This study identifies the success factors which are important for project management in construction project success. From the literature review, 26 factors were found to be critical. Project managers, construction managers, civil engineers, contractors and site engineers were the respondents. After analyzing the data in SPSS software, the dominant factors from the regression analysis are top management support, competent project team, abilities to solve problems, realistic cost and time estimates, information/communication, competency of the project manager are the 6 factors out of 12 in 26 factors. Effective communication between stakeholders got highest priority and client involvement, good leadership, clarity of project goals got second priority. Informal communication gives better results compared to formal communications like written formats. To remove communication barrier with the stakeholders, informal communication like speaking face-to-face with the language this fits for the stakeholders.

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2017

B. R Murugan, M. K. Haridharan, Natarajan, C., and Jayasankar, R., “Influence of Glass Fiber on Fresh and Hardened Properties of Self Compacting Concrete”, IOP Conference Series: Earth and Environmental Science, vol. 80. p. 012004, 2017.[Abstract]


The practical need of self-compacting concrete (SCC) is increasing due to increase in the infrastructure competence all over the world. The effective way of increasing the strength of concrete and enhance the behaviour under extreme loading (fire) is the keen interest. Glass fibers were added for five different of volume fractions (0%, 0.1%, 0.3%, 0.5% and 0.6%) to determine the optimum percentage of glass fiber without compensating the fresh properties and enhanced hardened properties of SCC concrete. The fresh state of concrete is characterized by slump flow, T-50cm slump flow, and V-funnel and L- box tests. The results obtained in fresh state are compared with the acceptance criteria of EFNARC specification. Concrete specimens were casted to evaluate the hardened properties such as compressive strength, split tensile strength, flexural strength and modulus of elasticity. Incorporation the glass fiber into SCC reduces the workability but within the standard specification. The hardened properties of SCC glass fiber reinforced concrete were enhanced, due to bridging the pre-existing micro cracks in concrete by glass fiber addition.

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2017

M. K. Haridharan, R Murugan, B., Natarajan, C., and Muthukannan, M., “Influence of Waste Tyre Crumb Rubber on Compressive Strength, Static Modulus of Elasticity and Flexural Strength of Concrete”, IOP Conference Series: Earth and Environmental Science, vol. 80. p. 012014, 2017.[Abstract]


In this paper, the experimental investigations was carried out to find the compressive strength, static modulus of elasticity and flexural strength of concrete mixtures, in which natural sand was partially replaced with Waste Tyre Crumb Rubber (WTCR). River sand was replaced with five different percentages (5%, 10%, 15%, 20% and 25%) of WTCR by volume. The main objective of the experimental investigation is to find the relationship between static modulus of elasticity and flexural strength with compressive strength of concrete with WTCR. The experimentally obtainedstatic modulus of elasticity and flexural strength results comparing with the theoretical values (various country codes recommendations).

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