ABSTRACT The project titled “The effect of admixtures on properties of concrete: case study of sugar, cow bone ash, groundnut shell ash, and lime stone powder” was carried out with the aim of knowing the effect the of the various types of admixtures used on the properties of concrete, in term of the workability of concrete, durability of concrete and the concrete strength. The material used are cow bone ash, groundnut shell ash, sugar and lime stone powder. The cow bon...
Table of contents Contents Page Title page Certification �...
Ultra-high performance concrete (UHPC) been an advanced concrete introduced as reactive powder concrete (RPC) over twenty years ago, is now being employed for use in the construction industry of some developed countries like China, Germany and United States of America. Its excellent properties in structural performance and durability make it the civil engineering material that will reshape the future of the construction industry in terms of structural performance; and this paper aims at helpi...
Abstract This study investigates the effect of Date Palm Seed Ash (DPSA) as a pozzolan on the workability, compressive strength and water absorption capacity of concrete. Temperature regulated kiln was used to burn the Date Palm Seed (DPS) into DPSA in two stages: it was first burned for eight hours at an optimum temperature of 590oC and then cooled for two days. It was again burned for three hours at an optimum temperature of 630oC for eight hours and was air cooled again for three days. The...
ABSTRACT This work investigated the structural characteristics of lime cement concrete using 30 selected mix ratios. The properties studied include, compressive strength, flexural strength, splitting tensile strength, shear strength, poisson ratio, modulus of elasticity, and modulus of rigidity. A total of 360 concrete cube specimen, 360 concrete prototype beam specimen, and 360 concrete cylinder specimen were cast and cured in open water tanks. 3 specimen were cast for each mix proportion. ...
ABSTRACT This study is on the determination of the Compressive Strength of Palm Kernel Shell Concrete. The effect of percentage replacements (0, 25, 50, 75 and 100%) of crushed granite with palm kernel shell on density and compressive strength of concrete is presented. Concrete cube specimens of mix 1:2:4 were prepared with water-cement ratio of 0.6. The cubes (150mm×150mm×150mm) were cured using water-submerged curing until testing ages of 7, 14, 21 and 28 days when their densities and co...
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 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 There has been a growing concern in the development of alternative building materials to ensure housing for low-income earners who cannot afford owning houses due to high cost of modern materials. Plantain (Musa paradisiaca) peels are the major byproduct of plantain fruits, constituting about 40% of the fruits but are presently underutilized. This work covers the investigation into the effect of Ripe Plantain peel ash (RPPA) and Unripe Plantain peel ash (UPPA) as admixtures to concr...
ABSTRACT The importance of concrete in modem society cannot be underestimated. There is no escaping from the impact of concrete on everyday life. Concrete is a composite material which is made of filler and a binder. Typical concrete is a mixture of fine aggregate (sand), coarse aggregate (rock), cement, and water. Nowadays the usage of concrete is increasing from time to time due to the rapid development of construction industry. The usage of concrete is not only in building construction bu...
ABSTRACT In this study, concrete mixtures were tested to effect of basalt and limestone as coarse aggregate and evaluate their efficiency on fresh and hardened concrete to achieve the design compressive strengths of [25N/mm2]. By using different proportions is 25%, 50%, 75% and100 %from the weight of coarse aggregate. The study was carried out for 6 types of concrete mixes designed by British Standard, compressive strength of concrete and workability were measured in the reconstruction of ma...
ABSTRACT The production of concrete as a civil engineering material is highly dependent on the availability of its constituent materials. However, most of these materials are no more readily available. In order to solve this problem, many researches has been carried out on the use of agricultural waste as construction material, one of this material is Empty Palm Oil Fruit Bunch Ash (EPO - FBA). (EPO - FBA) is an agricultural waste material which is gotten after burning empty palm oil fru...
ABSTRACT This research work reports the investigation carried out to determine the strength and microstructure of lateritic concrete containing palm kernel shell (PKS) as partial . replacement of coarse aggregates. The study employed different mix proportions, which resulted in casting and testing 148 cubes at 7, 14, 21, 28, 60, and 90-days of curing, to determine the best and economic proportion that will give compressive strength. The materials and methodology phase of this research evalua...
Abstract This study was conducted to test the possibility of benefiting from the blast furnaces slag resulting from the production of steel at Giad Factory south of the city of Khartoum –Sudan. The study aimed to determine the effect of partially replacing some of the concrete mix components with steel slag to study the effect on the compressive strength and workability of the concrete mixture. A mix design was prepared for standard according to the British and US by using another mixes whe...
ABSTRACT The versatility in-use of concrete for buildings and other infrastructures of necessity made concrete an important element of construction. Yet failure of concrete occurs more frequently at construction stage even when it seemed that mix ratio and design load calculations are adequate. This therefore suggests a missing gap in specification and the production of good site concrete. Literature survey confirms poor quality of concrete and use of sub-standard materials of concrete in th...