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Found 17 items.
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A Carbonation and Chloride Induced Corrosion Model for Hot-dip Galvanised Reinforcement Bar Material in Concrete
13-18
Article ID: 3150
464 (Abstract)
148 (Download)
Abstract: This paper focuses on methodological issues relevant to corrosion risk prediction models. A model was developed for the prediction of corrosion rates associated with hot-dip galvanised reinforcement bar material in concrete exposed to carbonation and chlorides in outdoor environment. One-year follow-up experiments, over five years, were conducted at various carbonation depths and chloride contents. The... More
2021-09-18 -
Partial Replacement of Cement by Solid Wastes as New Materials for Green Sustainable Construction Applications
8-12
Article ID: 3082
516 (Abstract)
201 (Download)
Abstract: The manufacturing of ordinary Portland cement is an energy-intensive process that results in pollution and CO2 emissions, among other issues. There is a need for an environmentally friendly green concrete substitute. Waste products from a variety of sectors can be recycled and used as a green concrete substitute. This decreases the environmental effects of concrete... More
2021-09-18 -
The Effect of Various Polynaphthalene Sulfonate Based Superplasticizers on the Workability of Reactive Powder Concrete
24-29
Article ID: 2731
1577 (Abstract)
231 (Download)
Abstract:
A superplasticizer is a type of chemical admixture used to alter the workability (viscosity) of fresh concrete. The workability of fresh concrete is often of particular importance when the water-to-cement (w/c) ratio is low and a particular workability is desired. Reactive Powder Concrete (RPC) is a high-strength concrete formulated to provide compressive strengths exceeding... More
2021-01-31 -
Concrete Mix Design by IS, ACI and BS Methods: A Comparative Analysis
30-33
Article ID: 2636
3103 (Abstract)
3097 (Download)
Abstract:
Concrete is one of the most consumable construction materials on the earth. The concrete constitutes cement, sand, gravel, water and/or additives in definite proportions. The proportions of raw materials of concrete are decided by the concrete mix design. The mix design depends on the various factors. For mix design, most of the countries have their... More
2021-03-30 -
Hemp Concrete: A Sustainable Green Material for Conventional Concrete
1-7
Article ID: 3189
2269 (Abstract)
772 (Download)
Abstract:
Concrete is one of the most important building material and day by day the utilization of concrete is increasing to meet the infrastructure development requirement. On one hand it is unavoidable but some alternative to be explored to reduce the global environmental impact caused by the concrete.To overcome this from the last decade the world... More
2021-09-13 -
Evaluation of the Relationship between Bacteria Concentration and the Strength and Durability of Self-compacting Concrete Incorporating Sporosarcina pasteurii
39-48
Article ID: 5596
313 (Abstract)
178 (Download)
Abstract:
This research was carried out to evaluate the relationship between the incorporation of calcite precipitation bacteria, sporosarcina pasteurii using calcium lactate as nutrient source and the properties of calcined clay and limestone powder blended self-compacting concrete. Ten mixes were designed and designated S0 to S9 with S0 the control (without bacteria and nutrient) and S1... More
2023-05-04 -
Feasibility Study on Use of Plastic Waste as Fine Aggregate in Concrete Mixes
26-31
Article ID: 1204
858 (Abstract)
223 (Download)
Abstract:
Plastic is used in many forms in day-to-day life. Since Plastic is non-biodegradable, landfills do not provide an environment friendly solution. Hence, there is strong need to utilize waste plastic. This creates a large quantity of garbage every day which is unhealthy and pollutes the... More
2020-01-14 -
Effects of Curing Methods on the Permeability and Mechanism of Cover Concrete
20-31
Article ID: 5484
311 (Abstract)
206 (Download)
Abstract:
Curing methods are one of the most important factors in determining the quality and compactness of cover concrete. The effect of curing methods on the water absorption and sorptivity coefficient of cover concrete with the substitution ratio of fly ash (FA) and ground granulated blast slag (GGBS) for cement between 30 wt% and 40 wt%... More
2023-03-29 -
Impact of Polymer Coating on the Flexural Strength and Deflection Characteristics of Fiber-Reinforced Concrete Beams
26-35
Article ID: 5304
283 (Abstract)
142 (Download)
Abstract:
Liquid polymers (LP) have become an important structural material used in the construction industry in the last decade. This paper investigates the viability of using commercially available LPs as a coating material to improve the flexural strength of fiber-modified concrete beams. The scope included preparing rectangular prism concrete beams with a concrete mixture including fly... More
2023-01-12 -
Assessing the Ageing Impact on Fatigue Life of Asphalt Concrete
9-15
Article ID: 2792
1344 (Abstract)
173 (Download)
Abstract:
The fatigue life of asphalt concrete is often related to environmental condition, loading condition, ageing, material composition and properties. This work investigates the influence of short and long term ageing of laboratory beam specimens, asphalt content, and testing temperature on fatigue life of asphalt concrete wearing course. Slab samples of (30 x 40x 6) cm... More
2021-03-30 -
Thermal Analysis of Concrete Mixtures with Recycled EPS Aggregates
36-45
Article ID: 5251
356 (Abstract)
155 (Download)
Abstract:
Reusing recycled waste materials in buildings is gaining more and more attention for what it offers economic, environmental, and energy benefits; and many researchers are nowadays working on producing new sustainable construction materials incorporating recycled wastes. In this scope, this work uses an experimental approach aiming at understanding the effect of incorporating Expanded Polystyrene (EPS)... More
2023-02-06 -
Experimental Study on the Compressive and Flexural Properties of the Ultrahigh-Performance Concrete Containing Fibers
Mohammad Yousef Nejati
, Manuchehr Behruyan, Amirreza Sadeghi, Kourosh Mehdizadeh, Abbasali Sadeghi
83-96
Article ID: 8269
176 (Abstract)
64 (Download)
Abstract:
Ultrahigh-performance concrete (UHPC) is a groundbreaking kind of concrete that distinguishes itself from conventional concrete through its unique material properties. Understanding and managing the time-dependent characteristics of these materials is essential for their effective use in various construction applications. This study presents an experimental evaluation of the compressive and bending properties of the UHPC incorporating polypropylene,... More
2025-03-12 -
Perspective of E-Waste in Concrete: A review
33-37
Article ID: 2759
1578 (Abstract)
294 (Download)
Abstract: In this digital era, usage of electric and electronic devices has become the need of people. Evolution of technology triggers the adoption of new devices over old and discarded appliances turned into the electronic wastes also termed as e-waste/s. E-waste from any source has become a major concern to the society. The disposal of these... More
2021-03-30 -
Properties of Sawdust Concrete
1-9
Article ID: 4818
589 (Abstract)
481 (Download)
Abstract:
This work examined the structural properties of concrete obtained by partially replacing cement with sawdust ash. The sawdust ash which is a pozzolan was obtained by burning sawdust which is a waste product from processing of timber in an open air. The burnt ash was passed through a 150 µm metric sieve to obtain the... More
2022-09-30 -
Compressive Behaviour of Reinforced Concrete Columns Using Recycled Building Glass Instead of Sand Aggregate in Concrete
Thanh-Quang-Khai Lam, Thi-Thuy-Trang Vo, K.S. Sreekeshava
1-19
Article ID: 8253
402 (Abstract)
228 (Download)
Abstract:
Exploring alternative aggregates or recycled aggregates to substitute traditional concrete aggregates, particularly sand aggregates, which are becoming more limited and must comply with environmental protection standards, is essential. Research has explored various alternative materials to sand in concrete, including concrete from demolished buildings, and broken glass from projects, among others. Investigating the use of recycled... More
2025-02-13 -
Photon and Fast Neutron Transmission Parameters of Metakaolin Doped Concrete
58-66
Article ID: 3817
406 (Abstract)
185 (Download)
Abstract:
Radiation-shielding properties of metakaolin doped concrete samples were investigated in this report. The gamma photon mass attenuation coefficients and exposure buildup factor of the samples were determined theoretically using WinXcom and EXABCal software respectively for the energy range of 15 keV - 15 MeV and fast neutron removal cross section for the concrete sample was... More
2021-12-06 -
Numerical Study of GFRP-reinforced Concrete Beams with Straight and Hooked-end Bar Lap Splices
Sara Mirzabagheri, Osama (Sam) Salem
1-16
Article ID: 6170
654 (Abstract)
462 (Download)
Abstract:
Glass fibre-reinforced polymer (GFRP) has been increasingly used as the main reinforcement in concrete structures due to its durability and resistance to corrosion. However, there is a lack of data regarding the bond behaviour of GFRP bars with 180-degree hooked ends used in flexure concrete elements. To investigate the effects of the hooked ends of... More
2024-04-01
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