scholarly journals Mechanical Behaviour of Self Compacting Concrete by using M-sand & Rice Husk ash

2019 ◽  
Vol 8 (10) ◽  
pp. 3320-3323
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Construction Material ◽  
Sustainable Construction ◽  
Partial Replacement ◽  
Agricultural Product ◽  
River Sand ◽  
Split Tensile Strength ◽  
Manufactured Sand

Rice husk ash (RHA) is an agricultural based pozzolanic material, which contains high amount of silica content. This experimental research was conducted on Self Compaction Concrete (SCC), to generate an economical concrete by using Manufactured Sand (M-sand) and Rice Husk Ash. Natural River sand usage is damaging the river beds, causing the drastic changes in ground water table and cost of river sand increasing day by day. To overcome this problems manufactured sand is used in SCC production. Rice husk Ash is very cheaper when compared to the Cement. It is extracted from Rice Husk which is a waste of Agricultural product. This material can be useful to generate a sustainable construction material. This paper presents the experimental results on development of mechanical properties of SCC with M-sand and Rice Husk Ash. Experiment conducted on 6 different mixes. i.e Partial Replacement with RHA (0%, 5%, 10%, 15%, 20%, 25%). For each mix Fresh properties (Slump flow & L-Box Test) & mechanical properties (Compressive strength, Split Tensile strength and Flexural strength) for 7days, 28days and 60days along with Density comparisons are compared.

scholarly journals MECHANICAL PROPERTIES OF RICE HUSK ASH (RHA) BRICK AS PARTIAL REPLACEMENT OF CLAY

2020 ◽  
Vol 1529 ◽  
pp. 042034
Author(s):  
A.A.M. Damanhuri ◽  
A.M.H.S. Lubis ◽  
A. Hariri ◽  
S.G Herawan ◽  
M.H.I. Roslan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Partial Replacement

scholarly journals Experimental Investigation on Making of Plastic Brick

2022 ◽  
pp. 1-7
Author(s):  
P. Subathra ◽  
Binil Varghese ◽  
Muhammed Jamsheed K. P ◽  
Muzammil T. H
Keyword(s):  
Compressive Strength ◽  
Construction Material ◽  
Strength Properties ◽  
Prosopis Juliflora ◽  
Sustainable Construction ◽  
Partial Substitution ◽  
Partial Replacement ◽  
Potential Threat ◽  
Split Tensile Strength ◽  
The Family

Since the building made of cement concrete consumes almost half of the total energy generated and accordingly accountable for huge amount of CO2 emission, it is necessary to replace the Portland cement (PC) with sustainable construction material. Similarly, Prosopis Juliflora is a shrub or small tree in the family Fabaceae, a kind of mesquite which is considered to be a potential threat for ground water in South India. Hence, this has to eradicate so as to maintain the groundwater and also to effectively utilize its ash thereby reducing environmental pollution, this can be used as a partial replacement for cement. In this regard, this paper investigates the technical feasibility of using Prosopis Juliflora ash (PJA) as cementitious material by partially (5%, 10% and 15%) replacing cement by Prosopis Juliflora ash. The mixes were evaluated for their fresh, physical and strength properties such as workability, density and compressive strength and the results were compared with the conventional mix. In order to save the environment and to save the resources we have come up with using the Prosopis Juliflora (Semai-Karuvelam in Tamil) ash as the partial replacement of cement. Cement will produce equal amount of greenhouse gas (co2) which increase the global warming. As the amount of cement is reduced greenhouse gases also reduced. Utilization of Juliflora ash as a partial substitution for cement is one of the promising methods to increase the strength and thermal insulation for cement blocks. The strength parameters (compressive strength, split tensile strength and flexural strength) of concrete with blended Prosopis Juliflora cement are evaluated.

Rice Husk Ash as a Cement Replacement in High Strength Sustainable Concrete

2020 ◽  
Vol 1007 ◽  
pp. 90-98
Author(s):  
Ash Ahmed ◽  
Fraser Hyndman ◽  
John Kamau ◽  
Heni Fitriani
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Construction Material ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Strength Development ◽  
Coal Waste ◽  
Environmental Implications ◽  
Sustainable Concrete

Cement is the most utilized construction material. The energy-intensive processes that are involved in its production contribute up to 10% of total global CO2 emissions, with potentially adverse environmental implications. It is however possible, that energy and cost efficiency can be achieved by reducing on the amount of clinker, and in its place utilising supplementary cementitious materials (SCMs) or pozzolans that require less process heating and emit fewer levels of CO2. Currently, most sustainable concrete uses either GGBS (slag) or PFA (fly ash) to reduce the quantity of cement used in construction and highways applications. GGBS and PFA come from industries (steel and coal waste respectively) which are in decline that should not be relied upon in the long term. This report shows that cement in concrete can also be replaced with rice husk ash (RHA) which actually enhances the mechanical properties. RHA comes from the food production industry and is vital for the growing global population. It is thus a socially responsible objective to use a pozzolan in civil engineering applications that is sourced from an environmentally friendly and sustainable industry. This study investigated the potential of RHA to be used as a SCM by evaluating mechanical properties. Experiments were carried out by supplementing cement in concrete mixes with RHA at up to 10% replacement by mass. Results were compared with a control specimen (100% cement), with a water/binder (w/b) ratio of 0.4 and C32/40 design mix using CEM I. The results show excellent early age strengths with all RHA mixes surpassing 40 MPa strength within 7 days which is contrary to general trends in SCM concrete where strength development is slow in the initial stages in comparsion to 100% cement concrete. All RHA specimens exhibited impressive flexural and tensile strengths.

scholarly journals Mechanical Properties of Rice Husk Ash as a Mineral Addition in Concrete

2008 ◽  
Vol 5 (2) ◽  
pp. 21
Author(s):  
Kartini Kamaruddin ◽  
Hamidah Mohd Saman
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Agricultural Waste ◽  
Partial Replacement ◽  
Replacement Level ◽  
Splitting Strength ◽  
Normal Strength ◽  
Tensile Splitting Strength

It is shown that some of the wastes have properties that would improve the quality of concrete produced. One such waste is agricultural waste rice husk, which constitutes about one-fifth of 600 million tones of rice produced annually in the world. The performance of RHA concrete was found to be varied among those of researchers and most of the studies encompassed for the utilisation of high grade concrete. This paper reported the investigation carried out on the mechanical properties of normal strength concrete of grade 30 N/mm2 with various partial replacement level of ordinary Portland cement (OPC) with Rice Husk Ash (RHA). Two(2) batches of same grade of concrete with and without use of superplasticiser (Sp) were adopted. The mechanical properties evaluated are in terms of compressive strength, flexural strength and tensile splitting strength of RHA concrete with and without superplasticiser (Sp). The results show that the optimum replacement level of RHA was 20 % and with the addition of Sp the replacement of RHA was taken as 40 %. However, the results of the study show that the performance in term of flexural strength and tensile splitting strength does not significantly improved with the replacement of cement with RHA.

scholarly journals Studies on manufactured sand effect on mechanical properties of geopolymer concrete as replacement of river sand in fine aggregate

2021 ◽  
Vol 309 ◽  
pp. 01114
Author(s):  
K. Veera Babu ◽  
T. Srinivas ◽  
Mahathi Tummala
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Construction Material ◽  
Environmental Concerns ◽  
Fine Aggregate ◽  
Geopolymer Concrete ◽  
River Sand ◽  
Natural Sand ◽  
Manufactured Sand ◽  
Low Calcium

Concrete is the most adaptable, long-lasting, and dependable construction material on the planet. There are numerous environmental concerns associated with the production of OPC, and natural sand is becoming more expensive and scarce as a result of unlawful river sand dredging. The greatest replacement material for traditional concrete is geopolymer concrete with low calcium fly ash. The purpose of this paper is to investigate the mechanical properties of geopolymer concrete of grades G30 and G50, which are equivalent to M30 and M50, when river sand is substituted in various quantities with manufactured sand, such as 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. When compared to the equivalent grades of controlled concrete, geopolymer concrete improves mechanical properties such as compressive, tensile, and flexural strengths.

scholarly journals Strength and Durability Research on Concrete with Partial Replacement of Cement by Rice Husk Ash and Spent Bleaching Earth

2019 ◽  
Vol 8 (2S11) ◽  
pp. 1035-1040 ◽  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Raw Materials ◽  
Bleaching Earth ◽  
Oil Industry ◽  
Waste Materials ◽  
Partial Replacement ◽  
Durability Test ◽  
Split Tensile Strength ◽  
Rice Milling

Concrete is the foremost building material in the region of the sphere and used in operational works, including infrastructure, low and high-rise buildings. Substitution of waste materials will conserve dwindling resources, and will avoid the environmental and ecological damages caused by quarrying and exploitation of the raw materials for making cement. So we are interested in replacement of cement with waste materials coming from oil industry and rice mill industry. So we are taking spent bleach earth (SBE) from oil industry & rice husk ash (RHA) from rice milling industry. W/c ratio as 0.38 and SP 430 IS used for obtaining required slump. The required slump is arrived at 0.7% of admixture. Following replacing the Cement with SBE 5%, 7.5%, 10% and RHA with 2%, 4%, 6%, 8%, 10% aimed at optimum results. Now SBE5% & RHA 8% got optimum values. Subsequently beams, cylinders, cubes are casted. Compressive strength, Split tensile strength, Flexural strength originate for 7 days & 28 days. Later 28 days curing cubes are placed in Hydrochloric acid (HCL) for durability test. For durability test cubes are submerged in 5% of HCL for additional 28days & find the Compression strength.

scholarly journals Experimental Project on Concrete - Partial Replacement of Cement by Prosopis Juliflora

2022 ◽  
pp. 8-12
Author(s):  
P. A. Prabakaran ◽  
Satheesh Kumar KRP ◽  
Janani G
Keyword(s):  
Compressive Strength ◽  
Construction Material ◽  
Strength Properties ◽  
Prosopis Juliflora ◽  
Sustainable Construction ◽  
Partial Substitution ◽  
Partial Replacement ◽  
Potential Threat ◽  
Split Tensile Strength ◽  
Experimental Project

Since the building made of cement concrete consumes almost half of the total energy generated and accordingly accountable for huge amount of CO2 emission, it is necessary to replace the Portland cement (PC) with sustainable construction material. Similarly, Prosopis Juliflora is a shrub or small tree in the family Fabaceae, a kind of mesquite which is considered to be a potential threat for ground water in South India. Hence, this has to eradicate so as to maintain the groundwater and also to effectively utilize its ash thereby reducing environmental pollution, this can be used as a partial replacement for cement. In this regard, this paper investigates the technical feasibility of using Prosopis Juliflora ash (PJA) as cementitious material by partially (5%, 10% and 15%) replacing cement by Prosopis Juliflora ash. The mixes were evaluated for their fresh, physical and strength properties such as workability, density and compressive strength and the results were compared with the conventional mix. In order to save the environment and to save the resources we have come up with using the Prosopis Juliflora (Semai-Karuvelam in Tamil) ash as the partial replacement of cement. Cement will produce equal amount of greenhouse gas (co2) which increase the global warming. As the amount of cement is reduced greenhouse gases also reduced. Utilization of Juliflora ash as a partial substitution for cement is one of the promising methods to increase the strength and thermal insulation for cement blocks. The strength parameters (compressive strength, split tensile strength and flexural strength) of concrete with blended Prosopis Juliflora cement are evaluated.

Strength Characteristics of Concrete with Indian Mettakaolin and Rice Husk Ash

2017 ◽  
Vol 13 ◽  
pp. 6140-6150
Author(s):  
A.N. Swaminathen ◽  
S.Robert Ravi
Keyword(s):  
Rice Husk ◽  
High Performance ◽  
Rice Husk Ash ◽  
High Performance Concrete ◽  
Construction Material ◽  
High Strength ◽  
Mineral Admixture ◽  
Engineering Properties ◽  
Partial Replacement ◽  
Strength Development

 Concrete is the most extensively used construction material around the world and its properties have been undergoing changes through technological advancements. Varieties of concrete have been developed to enhance the different properties of concrete. An investigation in to the potential use of partial replacement of mineral admixture in high performance concrete (HPC) has carried out. The engineering properties of fresh and hardenedconcrete are obtained by conducting test on slump, vee-bee, compaction factor and compressive strength, flexural strength, spilt tensile strength and modulus of elasticity, in this project partial replacement of cement bymetakaolin and rice husk ash been used for varying replacement of 0+0%, 5+105, 7.5+10%,10+10%,5+12.5%, 10+12.5%, 5+15%, 7.5+15%,  and 10+15%for high strength, workability and also an eco-friendly by less emission of co2. It has been concluded that strength development of concrete blended with metakaolin and rice hush ash was enhanced. It was found that in 7.5% replacement of metakaolin and 12.5% replacement of rice husk ash appear to be the optimum replacement which exhibited more strength. This investigation has proved that the MK and RHA concrete can be used as structural concrete at suitable replacement percentage. 

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