Recent Trends in Civil Engineering & Technology
Volume 6, Issue 2 (2016)
Published
Table of contents
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Sustainability of PPP Infrastructure Projects: Lessons from the Indian Experience
Abstract: Though the development of infrastructure projects either through private investment in case of public-private partnership (PPP) or using general funding, leads to the promotion of sustainable development (SD), but on account of giving more emphasis on the business interests of private sector there is the tendency of financial aspect taking precedence over the social and environmental aspects of sustainability. As a result, the infrastructure development through PPP route exhibits concerns …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 1–10 Read article
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Mechanical Properties of High Performance Glass Fibre Reinforced Concrete with Super Plasticizer
Abstract: High performance concrete (HPC) has been used in various structures all over the world since last two decades. Glass Fibre Reinforced Concrete (GFRC) is a relatively new type of building material and it is being increasingly used in different countries. Glass-fibre reinforced concrete (GRC) is a material made of a cementitious matrix composed of cement, sand, water and admixtures, in which short length glass fibres are dispersed. The usage of …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 11–16 Read article
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Preliminary Investigation on Steel Slag: Production, Processing and Cementitious Properties
Abstract: Steel slag is glass-like by-product left over from the conversion of iron to steel in a basic oxygen furnace, or from the melting of scrap to make steel in an electric arc furnace. This paper reviews the production, processing, and cementitious properties of steel slag, and its use as a cementing component in different cementing systems. The chemical composition of raw ore and cooling of molten steel slag have a …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 17–22 Read article
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Standardization of Cement Mortar by Using GGBS for Plaster Work
Abstract: This study investigates the feasibility of using replacement of natural river sand with 100% crushed sand, and partial replacement of cement with optimum percentage of ground granulated blast furnace slag (GGBS) on site conditions with a proportioned water cement ratio for plaster work. The methodology, which it undergoes, is slump test, compressive strength, flexural strength, split tensile strength. Cubes (70.6 mm 70.6 mm), beams (160 mm 40 mm), …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 23–29 Read article
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Time-Cost Trade-off and Constraint Resource Scheduling Considering Overtime for Activity Expedition
Abstract: Project cost, duration and resources are three important parameters of a construction project. There is always a trade-off between project time and cost. While a lot of techniques are available to optimize the project time and cost in normal conditions, less effort is done to optimize them in a resource constraint conditions. This paper is focusing on a nonlinear integer framework for time-cost trade-off (TCT) and constraint resource scheduling (RCS) …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 30–36 Read article
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Partial Replacement of Sand and Cement by Iron Ore Slime for Concrete Building Material
Abstract: Iron ore slime is a waste material generated after beneficiation of iron ores. It causes air, water and land pollution. From resource conservation point of view, the recovery of iron values is important and their use in different application. Researchers are also trying to find out value-added alternative application of iron ore slime rejects. In this paper, iron ore slime was used in concrete building material and evaluated the partial …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 37–42 Read article
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Compressive Behavior of Concrete Using Plastic Coarse Aggregate
Abstract: Plastic disposal is one of the main problems for environment due to its very low biodegradability and presence in large quantities. Every industries and shopkeepers mostly use plastics, so it is present in very large amount in the environment. E-waste plastics are used to replace coarse aggregates for making concrete mixes. Variations of the aggregates are available in three different sizes with the quantity of 5–15% of waste plastic coarse …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 43–46 Read article
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Comparative Study between Conventional and High Strength Concrete
Abstract: The current trend of use of superlatives in concrete technology may strike as somewhat disconcerting to many. We had high strength concrete, hyper-plasticizer, and super plasticizers, very reactive Pozzolana, and now high performance concrete. It is difficult to imagine any concrete being manufactured and used, which is not intended to perform to the extent; high performance concrete is not a new material of construction. The sole distinction is the level …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 47–50 Read article
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Experimental Investigation on Mechanical Properties of Hybrid Fibres in M25 Grade Concrete with Partial Replacement of Cement Using GGBS
Abstract: An investigation is made on the mechanical properties of Hybrid Fibre Reinforced Concrete (HFRC) using steel (ST) fibres and Recycled polyethylene terephthalate (RPET) fibres in M25 grade concrete. Steel fibres and Recycled PET fibres were added individually as mono fibres and then they were added together as hybrid fibres into the concrete mix for a fibre volume fraction of 1%. Mechanical properties such as compressive strength, split tensile strength, flexural …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 51–56 Read article
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Green Concrete Using Fly Ash and Silica Fume
Abstract: Recycled coarse aggregate can also be used by partially replacing natural concrete aggregates, so that construction and demolition waste can be further used for aggregates in new construction. Recycled coarse aggregate includes brick, tile aggregates, crushed stone aggregates, glass aggregates, and demolished aggregates. In this paper, different recycled aggregates are used by 40 and 60% replacement with natural aggregates of size 20 mm. Granite stone, brickstone, concrete debris are used …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 57–62 Read article
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Strength Based Comparative Study of Green Concrete
Abstract: Green concrete may be a revolutionary topic within the history of concrete trade. It is a kind of concrete that resembles the standard concrete however, the assembly or usage of such concrete needs minimum quantity of energy and causes least damage to atmosphere. Recycled coarse mixture may be employed by partly substitution natural concrete aggregates, so construction and demolition waste may be more used for aggregates in new construction. Recycled …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 63–67 Read article