This paper discusses the recent investigation into the composite action of pultruded Fibre Reinforced Polymer (FRP) and concrete hybrid systems, under static push-out tests. The study sought to experimentally determine the characteristic load-slip behaviour of the FRP-concrete composites under varying shear stud arrangements and failures modes associated with the variations and the push-out load capacity. For the initial tests, three composite test specimens were fabricated using FRP wide fla...
ABSTRACT The natural fibres, abundantly available in nature and also generated as agricultural waste, can be used advantageously in improving certain physical and strength properties of cement matrix and concrete. As compared to fibres widely used in construction activities viz. steel, glass carbon synthetic etc., these are advantageous in the sense that they are renewable, non-abrasive, cheaper, comparatively more flexible etc. Also, the health and safety concerns during their handlin...
ABSTRACT This research presents Artificial Neural Network Model for the prediction of the Modulus of Elasticity of Concrete. Egbulonu (2011) equation derived from Scheffe’s (4, 2) simplex equation for predicting the Modulus of Elasticity (MOE) was used to generate 800 values. These data represent different values of Modulus of Elasticity (MOE) out of which, 571 values were selected randomly by the artificial neural network. From the selected values, 400 were used for training the network,...
Abstract Shelter is a basic human need. Unfortunately, decent shelter for the masses; the poor have not materialized over the years. The cost of concrete materials in building and civil engineering project has been a concern to the society. These and other things led to the research on Biological local materials that are dumped as waste in our environment, causing pollution and congestion as substitute materials. Therefore, this research work was carried out in respect to that and the researc...
Correlation and regression in this paper were employed as analytical tools to study the degree of relationship as well asthe nature and strength of the relationship between green concrete properties and percentage replacement of cementwith civil engineering materials. Pearson product-moment method and Spearman’s correlation coefficient wereextensively used to show how correlation analysis can be practically applied in green concrete research. Least squareregression line method for both line...
ABSTRACT This study investigates the effect of curing methods on the compressive strength of concrete with fine and coarse aggregates components fully and partly replaced with lateritic sand and periwinkle shell respectively. A total of 90 cube specimens of 100 x 100 mm dimensions for each percentage replacements ranging from 10 to 40% percentage replacement of fine aggregate with lateritic sand and coarse aggregate with periwinkle shell and 100% percentage replacement of fine aggregate w...
Correlation and regression in this paper were employed as analytical tools to study the degree of relationship as well as the nature and strength of the relationship between green concrete properties and percentage replacement of cement with civil engineering materials. Pearson product-moment method and Spearman’s correlation coefficient were extensively used to show how correlation analysis can be practically applied in green concrete research. Least square regression line method for b...
ABSTRACT The work has gone a long way in determining strength of concrete made of various aggregates such as granites stone, black gravel, washed gravel and surface gravel. Some factors such as porosity of the aggregate temperature coursing lose of water plate form for mixing of concrete mix affect the workability and eventually the strength of concrete. This project work consist of using hydraulic machine to carryout the compressive test of the strength of concrete made of the earlier ment...
Study of Coarse Aggregate Characteristics on Strength Properties of High Performance Concrete Using Chemical Admixtures Mushtaque Ahmed Pathan1, Rafique Ahmed2, Maryam Maira3 1Assistant Professor, 2Associate Professor, Center for Pure & Applied Geology, UoS Jamshoro, Sindh, Pakistan 3Freelancer Researcher Mehran university of Engg. & Technology Jamshoro, Sindh, Pakistan *Corresponding author: Mushtaque Ahmed Pathan | Received: 14.03.2019 | Accepted: 21.03.2019 | Published: 31.03.2019 DOI:10.2...
ABSTRACT This work presents the results of investigation conducted to assess the suitability of polyvinyl waste powder (PWP) as partial replacement of cement in the production of concrete. Up to 50% by weight of cement was replaced with PWP at interval of 10%. The parameters investigated are: the chemical composition of polyvinyl waste powder (PWP) and the setting times of cement-polyvinyl paste. Also investigated in concrete containing polyvinyl powder were: workability, density, compressive...
ABSTRACT Several approaches using regression functions have been proposed over the years for predicting either the desired compressive strength of concrete or the mixture proportions of its constituent materials. This study as part of the continuing effort, presents models developed using Ibearugbulam's regression principle for predicting the desired compressive strength of granosand concrete when the mix proportions are known or vice-versa. Laboratory experiments were carried out with ...
ABSTRACT As the prices of building materials in the country continue to increase sharply, there is growing need to source local materials as alternative for farm building constructions. This project investigates the performance of a cylindrical shell built of laterized concrete for storage of foodgrains or water. L In order to optimize the mix ratio of the constituent materials that will produce maximum strength, a mathematical model which relates the strength of laterized concrete and its ...
ABSTRACT Conventional construction materials require the extraction of large quantities, causing depletion of natural resources and environmental damage. This work investigates the possibility of using bauxite mining waste as fine aggregate replacement for concrete production. The experimental works were conducted by varying sand and bauxite mining waste to mix ratio of 1:2:4 with five different replacement levels namely: 0%, 25%, 50%, 75% and 100% by weight and water cement ratio of 0...
ABSTRACT This research presents Artificial Neural Network Model for the prediction of the Modulus of Elasticity of Concrete. Egbulonu (2011) equation derived from Scheffe’s (4, 2) simplex equation for predicting the Modulus of Elasticity (MOE) was used to generate 800 values. These data represent different values of Modulus of Elasticity (MOE) out of which, 571 values were selected randomly by the artificial neural network. From the selected values, 400 were used for training the network, ...
Abstract: This paper presents the results of a study conducted to investigate the flexural behaviour of foam concrete containing pulverised bone as partial replacement of cement. A total of sixty reinforced beams (150×150×750 mm) were used to investigate the flexural behaviour of the specimens. For reinforcement of the beams, hot-rolled, deformed 10-mm-diameter bars with yield and ultimate stresses of 478.10 N/mm2 and 710.81 N/mm2 respectively were used. The cement constituent of the mix wa...