http://localhost:8080/xmlui/handle/123456789/357 2026-06-23T06:19:04Z http://localhost:8080/xmlui/handle/123456789/2895 Title: Reaction Mechanism of Chemical Stabilization in Expansive Soil Authors: Nalawade, R. D.; Jadhao, P. D. Abstract: Chemical Stabilization in expansive soil have applications for many structures such as foundation, embankment, roadways, and water, sewer lines and play important role. Stabilized soil properties like plasticity, shrinkage and swelling, permeability and strength are depends on the type, shape, dimension and distribution of reaction products and pores. Proper mix design and curing conditions controls the capability of expansive soils and stabilizers to engage in the formation of cementitious compounds. Due to alteration in the mineralogy of the treated soil and new mineral formations with more stable are produced. Traditionally lime, salt and cement were used as a stabilizer but recently many stabilizers which are coming in the market required more attention. Most published reviews focus on defining the test results and performance of pozzolanic material properties and do not treat the subject of the mechanism of the pozzolanic reaction in detail. Hence the main objective of this paper is overview the reaction mechanism of chemical stabilization in expansive soil. 2016-07-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/2893 Title: STRENGTHENING OF BEAM-COLUMN JOINTS IN RC FRAMES USING STEEL SECTIONS” Authors: Kawale, G. B.; Selokar, G. R. Abstract: - There are many details for reinforced concrete frame joints. Few of these details could satisfy the strength requirements, cracking and ductility. But the joint are still the weakest part in structural system. Observations made after earthquake, accidental loading shows that breakdown at the joint is the most frequent cause of failure of element connected. Distribution of stresses at an opening corner indicates that high tensile stresses exist at the inner corner normal to diagonal, coupled with tensile stresses along the diagonal. This paper explains the objectives to strengthen the joint to avoid the tensile stresses which causes the diagonal cracks at the joint. Five types test models are considered to analysis having different attachment to the corner for strengthening purpose. The models are subjected to heaviest load. Analyzed by using Stad-pro. The solid steel plates are found as an outstanding solution but attachment is very difficult. Chamfering is also helpful to this condition but cracks are developed in this case. The two angular plates are used to avoid diagonal cracks. 2017-06-02T00:00:00Z http://localhost:8080/xmlui/handle/123456789/2595 Title: COMPARATIVE EXPERIMENTAL STUDY ON FLEXURAL BEHAVIOUR OF COMPOSITE SLAB AND RCC SLAB Authors: Thakare, Akshay A.; . Kothavade, Kalyani V; . Dhake, P P. D; Jadhao, P. D. Abstract: This paper is elaborating the comparative study between simply supported RCC slab and profiled steel concrete slab for their suitability at small scale applications like mezzanine flooring. Experimental study has been conducted on the design of composite concrete slabs and RCC slab. In this study full size simply supported slabs has been designed and tested for flexural to study the bending capacity and vertical shear strength of composite slab and the same is compared with bending capacity of RCC slab. ‘m-k’ method is used for the design of composite slab and experimental test setup has been done by following guidelines given by Eurocode 4 – Part 1.1 and IS 456-2000 is used for design of RCC slab. Six composite slabs are split into two groups of three slabs and tested under static and cyclic loading to get ‘m-k’ values and RCC slab is tested under static loading for flexural. As a result composite slab proved to be more efficient than R.C.C. slab for small scale use. 2016-11-16T00:00:00Z http://localhost:8080/xmlui/handle/123456789/2477 Title: Evaluation of Durability of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) Through Extreme Temperature Authors: Shelorkar, A.P. Abstract: In the present era of modern concrete technology Ultra High Performance Fibre Reinforced Concrete (UHPFRC) is new cement based material. An inclusion of fibers shows to increases both mechanical and durability properties of UHPFRC. The aim of this study is to determine durability of UHPFRC containing fly ash and Metakaolin. Durability of UHPFRC after exposed to extreme temperature is evaluated. UHPFRC gives better fire resistance.The specimens were exposed to high temperature, specially 200ºC, 400ºC, and 600ºC for 1 hour. The fire resistance of specimen was classified on the basis of their compressive strength and weight loss. Strength loss was not significant at low temperature; up to 200ºC.Metakaolin shows the better performance as compared with fly ash. SEM analysis was also carried out to study effect of extreme temperature on microstructure of UHPFRC. 2017-04-04T00:00:00Z