Search
1475 articles for “Performance”
-
Re-Characterization of Strength Properties of Asphalt Concrete Mixtures Using Non Bituminous Modifier – Candle Wax
Abstract: Improving the performance of asphalt concrete mixtures synonymous with flexible pavement has been a major concern in highway engineering. However, design of flexible pavement begins with proper material characterization to ensure that designs are appropriate. It is also pertinent to say that sometimes if not most times the properties of the individual materials that make up the pavement structure falls short of desired expectations. This has led to exploring techniques …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 30–36 Read article
-
Effect of variation of Elevated Temperature on Compressive Strength of Metakolin concrete
Abstract: It has been found that high early temperature has negative impacts on later compressive strength of concrete. Some researchers investigated the adverse effect on long term strength of concrete due to high initial temperature. The effect of temperature on different properties of concrete is considerable and remained the subject of research activities of a lot of researchers. Different investigators moved in different ways and investigated temperature effect by changing different …
Published in International Journal of Concrete Technology · Vol. 2, Issue 2, 2016 · pp. 9–16 Read article
-
Experimental Study on the Properties of Self-Curing Concrete
Abstract: This paper highlights the effect of curing agent polyethylene glycol (PEG-400) in the performance of concrete. The chemical agent PEG is used with different percentage; 1%, 2% and 3% to the weight of cement. Super plasticizer named glenium was used to improve the workability of concrete. The property such as compressive strength and split tensile strength of concrete was examined with normal curing and self-curing at 7 days and 28 …
Published in International Journal of Concrete Technology · Vol. 3, Issue 1, 2017 · pp. 8–13 Read article
-
Analysis of Gravity Dam for Different Rectangular Openings Sizes
Abstract: Gravity dams are very important structures. Different parameters which come in loading combination are temperature, dead weight, earthquake, hydrostatic pressure and water load. From the study, it has been found that the properties which affect the performance of a dam are static properties and thermal properties. Static properties of the concrete dam are strength, Poisson’s ratio and elastic modulus while thermal properties are specific heat, thermal expansion coefficient, thermal conductivity …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 11–17 Read article
-
Review Study on re-strengthening of reinforced concrete circular column using steel strips
Abstract: This technique fixes thin steel plates i.e. steel encasement or tie plates i.e. steel cage around the column with steel angles at each corner, clamped to the concrete and welded together. Adequate tightening of the jackets can be ensured by means of heat tensioning. The use of steel jackets can enhance the shear strength of columns considerably. However, due to their low flexural stiffness they typically have poor confinement efficiency …
Published in International Journal of Concrete Technology · Vol. 4, Issue 2, 2018 · pp. 1–9 Read article
-
Experimental Investigation On Partial Replacement Of Fine Aggregate By Wood Ash On Concrete
Abstract: This paper intends to investigate the possibility of producing low costs enhanced performance concrete by wood ash. By taking the enormous amount of sand in river beds, it affects the environment badly and demand for fine aggregate is increase day by day. So by partially replacing Prosopis juliflora ash with fine aggregate in construction field, It can serve both the purposes of meeting the demands of construction industry and at …
Published in International Journal of Concrete Technology · Vol. 4, Issue 2, 2018 · pp. 10–16 Read article
-
Effect of Accelerated Curing and Normal Curing Regimes on UFGGBFS-Based Semi-Lightweight Concrete
Abstract: This paper deals with the performance of semi-lightweight concrete (sLWC), prepared by using calcite powder pellets as coarse aggregates which was improved by partial replacement of cement with UFGGBFS (ultrafine ground granulated blast-furnace slag). Cement could be replaced by UFGGBFS as 0%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, and 70% to enhance the strength and durability properties of concrete. High-range water-reducing admixtures (HRWA) …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 1–7 Read article
-
Experimental Study on Partially Replacement of Fine Aggregate & Coarse aggregate by Waste Marble with addition of S-Fiber
Abstract: Today’s world is a concrete jungle. With the ever increasing population of the world, in general and the developing countries there is the tremendous pressure on the Civil Engineer to develop a cost effective as well as ecofriendly structure to fulfill the need of the human being. Concrete is a heterogeneous mixture of binding material (cement or lime), coarse aggregates, fine aggregates (sand) and water. Fine and coarse aggregates are …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 1–9 Read article
-
A Study on Self Compacting Concrete using Portland Pozzolana Cement
Abstract: Self-compacting concrete (SCC) is a type of highly flowable concrete that fills each and every corner of congested formwork without the need for mechanical vibration as it is placed by means of its own weight. Generally, the SCC is prepared by using Ordinary Portland Cement (OPC) with mineral and chemical admixtures. Portland Pozzolana Cement (PPC) itself contains some amount of fly ash, thus given the motivation to prepare the SCC …
Published in International Journal of Concrete Technology · Vol. 6, Issue 2, 2020 · pp. 1–9 Read article
-
Research on Partial Replacement of Fly Ash and Superplasticizer on Self Compacting Concrete
Abstract: In this project I have proposed a mix design procedure for self compacting concrete achieve the target mean strength in which mixes are designed on the basis of Indian Standards and suitable adjustments are done. The amount of fine aggregates, coarse aggregates, cement and mixing water as well as the dosage of superplasticizers to be used as a major factor influencing the properties of SCC in the plastic stage as …
Published in International Journal of Concrete Technology · Vol. 6, Issue 2, 2020 · pp. 39–45 Read article
-
Mechanical Behavior of Fly Ash Concrete A Critical Review
Abstract: Concrete structure is the most common all over the world. Cement is the major ingredient of concrete. Though the raw materials needed for manufacture of cement are available in most parts of the world, many countries have severe shortage of cement, although their needs are vast. The search for suitable substitute for cement, either partially or fully, has thus become a challenge for planning the development of many of the …
Published in International Journal of Concrete Technology · Vol. 7, Issue 1, 2021 · pp. 29–43 Read article
-
Usage of fly ash and slag as supplementary cementitious materials in engineered cementitious composites (ECCs) – A Review
Abstract: Researchers evolved Engineered Cementitious Composite (ECC) in the Nineties, belong to the family of high-performance fibre-reinforced cementitious composites. ECC, additionally known as bendable concrete as a ductile alternative to conventional concrete. ECC requires a huge amount ofsupplementary cementitious material (fly ash), contributing to sustainable development. In this paper, a review of ECC studied with supplementary cementitious materialswhich includefly ash and slag. ECC has better tensile strength, ductility and durability properties …
Published in International Journal of Concrete Technology · Vol. 7, Issue 1, 2021 · pp. 44–55 Read article
-
DETAILED STUDY ON THE PROPERTIES OF PLASTIC CONCRETE CUTOFF WALL MATERIALS MIXED WITH WATERPROOFING ADMIXTURES
Abstract: This study presents the results of a comprehensive experimental work performed to characterize the mechanical and hydraulic properties of plastic concrete materials added with water-resisting and crystalline admixture as Permeability Reducing Admixture for Hydrostatic conditions (PRAH). The mechanical properties, deformation, permeability nature, triaxial stress-strain curve, hydration products, phase composition, and pore structure of plastic concrete with various proportions of PRAH were investigated. In addition to that, retarding admixture was used …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 1–15 Read article
-
Exploring the Integration of Recycled Waste Materials in Concrete: A Comprehensive Overview
Abstract: The utilization of recycled materials from construction sites has experienced a notable increase in recent times, driven by the principle of efficient resource usage established by the International Council of Building in 1994. Recycled materials, including recycled concrete aggregate or brick aggregate sourced from construction and demolition waste, waste glass from municipal waste or recycled sources, and gypsum from gypsum boards, are being increasingly employed as substitutes for primary raw …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 26–34 Read article
-
Experimental Investigation on the Properties of Concrete Replacing Waste Plastic as Aggregates for Solving Waste Management Problem
Abstract: Solid waste management is one of the growing problems of every country. As part of this ongoing program to consider the growing waste management, pollution problem, and prevention framework in India, the Ministry of Environment has suggested various approaches and ways through which we can either recycle or use the most polluting materials like plastic. The present study covers one of the ways through which to recycle one of the …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 17–25 Read article
-
A Review on Waste Bakelite as Replacement Partially Over Coarse Aggregate in Concrete Mix
Abstract: Various components in India are made up of Bakelite. Saffron Global Dumping of waste Bakelite through landfill is not allowed due to it effect on soil mass and open burning is not allow because of the emission of harmful gases which cause air pollution. A large space of storehouse requires to store large amount of area for keeping waste Bakelite which becomes management problem of waste. Despite managing waste Bakelite …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 8–13 Read article
-
Application of Suitable Admixtures (Lime and RHA) for Improvement of Pavement Subgrade
Abstract: Abstract The quality of a pavement depends on the strength of its sub-grade. The present investigation has been carried out with easily available materials like lime and rice husk ash mixed individually and in combinations with different proportions. The different percentages of lime with respect to weight of dry soil were 2%, 4%, 6%, 8% 10% and for rice husk ash (RHA) were 3%, 6%, 9% and 12%. In each …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 2, 2015 · pp. 14–31 Read article
-
Condition Assessment of Structures Using Vibration Technique
Abstract: Structural Health Monitoring grasps the Promise for enhancing the structural performance with an outstanding cost/benefit ratio. Condition assessment is a technique used in health monitoring in the damage detection, to ensure the serviceability and the durability of the structures. In the present report, condition assessment of the structures using low frequency technique is being completed through experimental modal analysis and computational analysis software ANSYS 9.0 over structural elements beam and …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 1, 2017 · pp. 36–46 Read article
-
Seismic Hazard Assessment of Dehradun City
Abstract: Seismic hazard assessment refers to an estimation of ground motion parameters at any site or region. In the present study seismic hazard assessment is performed for the Dehradun city which lies in a highly seismic region in the Himalayan foothills. Based on the seismicity data provided by IMD, New Delhi and Seismotectonic Atlas of India (GSI, 2000), seismicity was described and 24 seismotectonic sources were identified in the study area. …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 4, Issue 1, 2018 · pp. 6–12 Read article
-
Neural network based prediction of shear wave velocity for soils
Abstract: The paper presents a study on the prediction of the shear wave velocity (Vs) for all soils using ANN model from cone penetration test data. The input parameters in the obtained of ANN models were vertical effective stress, sleeve friction, cone tip resistance and output was the shear wave velocity. These parameters were considered to construct the ANN model which has 3-2-1 topology in prediction of shear wave velocity. Further, …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 2, 2019 · pp. 23–34 Read article