scholarly journals An Experimental Investigation on The Mechanical Behaviour of Polypropylene Fibre Reinforced Concrete Using Ferrous Slag as A Partial Replacement of Fine Aggregate

Author(s):  
G. R. Ravikanth ◽  
D. Mohammed Rafi ◽  
Dr. C. Ramachandrudu

Globally construction industry has enormous growth year by year. This leads to increase the need for construction materials. We are taking the materials from natural resources because of this natural resource depletion occurs at a faster rate. Also, this affects the environment. Cement production leads to higher amount of CO2 emission similarly depletion in river sand leads to ground water problems. So we have to find some alternate materials to conserve the earth for next generation. The faster industrial growth generates large amount of industrial wastes. Industrial waste material management is such a challenging area. Handling and disposal of industrial waste is a big issue for every country around the world. Ferrous slag is considered as an industrial waste which is obtained from iron smelting process. To minimize the environmental problems ferrous slag is used in concrete as a partial replacement of fine aggregate. Concrete is strong in compression and weak in tension. Using Polypropylene fibre we can increase the tensile strength of concrete. Mainly polypropylene fibre resists the micro plastic shrinkage cracks. Here polypropylene fibres added as micro reinforcement. But not much research has been carried out to study the combined behaviour of ferrous slag and Polypropylene fibre. The percentages of replacements of sand by granulated ferrous slag are 0%, 20%, & 50% and also the fibre dosage is maintained as constant 0.5% of cement. This research focused on the combined behaviour of ferrous slag and polypropylene fibre in study strength and transport properties.

2019 ◽  
Vol 11 (17) ◽  
pp. 4647 ◽  
Author(s):  
Warati ◽  
Darwish ◽  
Feyessa ◽  
Ghebrab

The increase in the demand for concrete production for the development of infrastructures in developing countries like Ethiopia leads to the depletion of virgin aggregates and high cement demand, which imposes negative environmental impacts. In sustainable development, there is a need for construction materials to focus on the economy, efficient energy utilization, and environmental protections. One of the strategies in green concrete production is the use of locally available construction materials. Scoria is widely available around the central towns of Ethiopia, especially around the rift valley regions where huge construction activities are taking place. The aim of this paper is therefore to analyze the suitability of scoria as a fine aggregate for concrete production and its effect on the properties of concrete. A differing ratio of scoria was considered as a partial replacement of fine aggregate with river sand after analyzing its engineering properties, and its effect on the mechanical properties of concrete were examined. The test results on the engineering properties of scoria revealed that the material is suitable to be used as a fine aggregate in concrete production. The replacement of scoria with river sand also enhanced the mechanical strength of the concrete. Generally, the findings of the experimental study showed that scoria could replace river sand by up to 50% for conventional concrete production.


2019 ◽  
Vol 8 (3) ◽  
pp. 1982-1988

Use of agro and industrial wastes in concrete production will cause sustainable concrete era and greener habitat. In this study an endeavor has been made to discover the propriety of Sugarcane Bagasse Ash (SCBA) and Granite Waste (GW) as partial replacement for traditional river sand. The percentage substitute is calculated based on the particle packing approach. The properties such as compressive, splitting tensile, flexural strengths and modulus of elasticity, water absorption, sorptivity and rapid chloride penetration test of the concrete with bagasse ash and granite waste as a partial replacement for river sand and to evaluate them with those of conventional concrete made with river sand fine aggregate are investigated. The test results show that the strength aspects of bagasse ash-granite waste concrete are higher than those of the conventional concrete. Moreover, they suggest that the bagasse ash-granite waste concrete has higher strength characteristics and remains in the lower permeability level shows improvement in overall durability of concrete than the conventional concrete.


Abstract. To overcome the shortage of natural resources for the production of concrete, many waste materials are used to replace the raw materials of concrete. In this way, bottom ash is one of the major industrial wastes which shall be used as the replacement of materials in concrete production. It shall be used to replace the materials either up to one-third. This review brings out the evaluation of the industrial waste material which can be repeatedly used as a substitution for concrete as fine aggregate. This paper reviewed the use of industrial waste i.e., bottom ash as fine aggregate in the concrete. The parameters discussed were physical, chemical, fresh, and hardened properties of the concrete with partial replacement of bottom ash. By reviewing some of the research papers, concluded that 10-15% replacement of fine aggregates is acceptable for all the properties of concrete. High utilization of natural sources -gives the pathway to produce more industrial wastes which are responsible for the development of new sustainable development.


2020 ◽  
Vol 8 (5) ◽  
pp. 2218-2222

Industrial wastes mostly dumped into the soil or water sources which will pollute the environment. As a mitigation measure now a days the industrial wastes are used as a construction materials. In this project, industrial waste material such as Glass bottle, Illuminate sludge were used in varying percentage as fine grained substitution and Metakaolin is used as a binding material substitution. M30 concrete mix is used to test the compressive and split tensile strength of the concrete specimens. Cement is replaced with metakaolin in 4, 8, 12, 16 and 20%. Fine aggregate is replaced by illuminate sludge in 25, 50, 75 and 100% and beer glass bottle waste in 10, 20, 30, 40, and 50%.The Glass material does not pollute the environment but storage of waste glass material results wastage of land. Thereby glass powder can be used as a substitution in construction. Then the Illuminate sludge and Metakaolin are the waste from the Titanium Product. The materials to be used for the experiment are collected and the physical properties tests were done as per codal specifications. The experiment is conducted to determine the strength of concrete specimen by adding different industrial waste in various proportions. For every industrial wastes each ratio, three specimens were prepared to find out the compressive and split tensile strength of concrete at 7, 14 and 28 days and finally it was allowed to curing for obtaining the optimum strength of concrete. The substitution of Glass bottle powder waste up to 30%, Illuminate sludge 20% and Metakaolin 8% will give the optimum compressive strength. bottle powder waste up to 30% Illuminate sludge 20% and Metakaolin 8% will give the optimum compressive strength.


2019 ◽  
Vol 11 (24) ◽  
pp. 7116
Author(s):  
Lucy Feleke Nigussie ◽  
Muge Mukaddes Darwish ◽  
Tewodros Ghebrab

Wherever there are construction activities, there is waste generation. In Ethiopia, the popular material for wall construction is a hollow concrete block that can be broken on the production site or the construction site during loading and unloading and is also found abundantly in demolished buildings. This research aimed at searching for alternative construction materials through recycling and examined the properties of recycled fine aggregate from demolished (old) and construction (new) hollow concrete block (HCB) wastes. The study examined the effect of the recycled HCB on fresh and hardened C-25 concrete properties and the possible replacement percentage of river sand by those recycled fine aggregates. The research also examined the comparative properties of the two recycled fine aggregates. The replacement percentage was in steps of 25%, starting from 25% up to 100%, and 0% represented the reference mix. In general, the recycled fine aggregate exhibited relatively lower physical properties than natural river sand but satisfied the American Society for Testing and Materials (ASTM) standard requirements. The demolished recycled fine aggregate (DRFA) had slightly lower physical properties than the construction recycled fine aggregate (CRFA). The properties of fresh and hardened concrete were decreased as percentage replacement of DRFA and CRFA increased. The optimum percentage replacement of river sand by recycled fine aggregate was between 50% to 75% but was much closer to 75% for that of recycled from construction (new) and closer to 50% for that of recycled from demolished (old) HCB. Recycling wastes can reduce environmental impact due to sand mining and waste disposal as well as partially conserve the natural resource depletion.


2019 ◽  
Vol 8 (4) ◽  
pp. 5817-5820

Paper Construction industry has been conducted various studies on the utilization of waste materials in concrete productions in order to decrease the usage of natural resources. This research paper exhibits the evaluation and the effective reuse of waste construction materials and industries, such as cuddapah waste aggregate as partial replacement of conventional coarse aggregate and copper slag as partial replacement of river sand (fine aggregate). Experiments were conducted to find out the mechanical properties of concrete such as compressive, splitting tensile, flexural strengths and the modulus of elasticity of concrete for waste materials aggregate concrete and to compare them with those of conventional aggregate concrete. Results appear that waste materials in concrete have the potential to produce good quality concrete mixtures.


Author(s):  
Vrishabh V. Zirange

Abstract: Ancient peoples were used mud mortar for their stone houses. The result was a stone home that was both solid and warm and lasted for lifetimes. Mud made houses creates wonderful warm houses as compared to concrete made houses. In the history of construction, clay mortar was followed by lime mortar. Cement manufacturing is one of the major contributors in global warming and climate change. Also fine aggregate is the natural resource and it is limited in nature, thus industrial sand can be alternative for fine aggregate. We are going to use PPC cement because PPC cement resist sulphate attack more than OPC cement and also it is quite cheap. The setting time of the PPC cement is more than OPC cement but when it settled completely then it gives more strength more than OPC cement. Also they used river sand in there project and nowadays there is shortage of river sand that’s why we are going to use foundry sand partially replacement with sand. Foundry sand is a industrial waste sand so we can save money by using foundry sand. The mortar with the alternative fine aggregate, mixed with different combinations of binding materials. We take White clay to River sand proportion as 1:1. In that we partially replace white clay with PPC cement and in other hand River sand partially replaced with Industrial waste(Foundry sand) and also with Rice husk and that mix proportions was tested for 28 days Compressive strength & after curing of 28 days ,cubes cured in acid & alkali solution for Durability strength. The mortar with 20% PPC cement + 80% white clay & 40% foundry sand + 60% river sand (proportion of white clay to river sand is 1:1) has compressive strength in the range of 4.38MPa (Compressive strength) & 4.42Mpa (Compressive strength after Durability test) and these mixes compared with 1:6 conventional mortar proportion, which is acceptable as per the IS code 2250-1981 specification, the minimum strength requirement of mortar to be 3 MPa. Therefore, the use of stabilized mud mortar in construction would prove to be sustainable as well economical. Keywords: Mud mortar, Foundry sand, PPC cement, Compressive strength, Durability test.


This paper presents an experimental investigation on the properties of concrete in which like cement is partially replacing by used nano silica and is partially replacing by used waste foundry sand. Because now a day the world wide consumption of sand as cement and as fine aggregate in concrete production is very high. Nano silica and waste foundry sand are major by product of casting industry and create land pollution. The cement will be replaced with nano silica and the river sand will be replaced with waste foundry sand (0%, 5%, 10%, 15%, 20%). This experimental investigation was done and found out that with the increase in the nano silica and waste foundry sand ratio. Compression test has been done to find out the compressive strength of concrete at the age of 7, 14, 21, and 28. Test result indicates in increasing compressive strength of plain concrete by inclusion of nano silica as a partial replacement of cement and waste foundry sand as a partial replacement of fine aggregate.


2003 ◽  
Vol 9 (4) ◽  
pp. 271-279 ◽  
Author(s):  
Hau-yan Leung ◽  
Ramapillai V. Balendran

This paper summarises experimental results of some fresh concrete tests. Polypropylene fibres were added to the concrete mix to produce fibre reinforced concrete. Pozzolanic materials, including pulverised fly ash and silica fume, were used as partial replacement of cement, and their effects on the fresh fibre concrete were reported. Test results showed that the polypropylene fibre reduced the concrete workability significantly by thixotropic effect and decreased the setting time. Substitution of pozzolans also greatly affected the properties. The presence of fly ash increased the workability and setting time but in the presence of silica fume a reverse trend was observed. Empirical equations were proposed.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammed Seghir Ammari ◽  
Mohammed Bachir Tobchi ◽  
Yahia Amrani ◽  
Anouer Mim ◽  
Madani Bederina ◽  
...  

Purpose This study is part of the valorization of local materials and the reuse of industrial waste in construction. This study aims to improve the physical-mechanical properties of sand concrete. This work is a continuation of previous studies conducted on sand concrete, the purpose of which is to introduce industrial waste into this material. For this purpose, a glass waste in powder form is added. Design/methodology/approach This study is focused on the effect of adding glass powder (GP) whose mass percentage varies from 0 to 40% with an interval of 10% to target the right composition that ensures the best compromise between the characteristics studied. Findings The results found show that the workability and density of the studied concretes decreased with increasing GP dosage. Indeed, the optimal addition which constitutes the best compromise between the studied properties is 10% of GP. Improvements of up to about 9% in the case of flexural strength and about 18% in the case of compressive strength. The thermal conductivity has been reduced by 12.74%, the thermal diffusivity which characterizes the notion of thermal inertia has been reduced by about 4% and the specific heat mass has been reduced by 7.80%. Also, the shrinkage has been reduced by about 20%. The microstructure of the studied composite shows a good homogeneity between the aggregates. Finally, the addition of GP to sand concrete gives very encouraging results. Originality/value The interest of this study is in two parts. The first one is the exploitation of local materials: dune sand, river sand and limestone filler to meet the growing demand for construction materials. And the second one is the reuse of glass waste, in the form of powder (GP), to solve the environmental problem. All this participates in the improvement of the physical-mechanical properties of sand concrete and the extent of its response to the development of an economical structural concrete.


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