scholarly journals PENGARUH PENAMBAHAN ABU SEKAM PADI PADA PEMBUATAN BATU BATA TERHADAP KUAT TEKANNYA

2020 ◽  
Vol 6 (4) ◽  
Author(s):  
Matsyuri Ayat
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Rice Husk ◽  
Construction Projects ◽  
Rice Husk Ash ◽  
Clay Soil ◽  
Structural Elements ◽  
Additional Material ◽  
Compressive Strength Test ◽  
The Many

The use of bricks in the world of construction, both as structural and non-structural elements, cannot be replaced. This can be seen from the many construction projects that use bricks as walls in building and housing construction, fences, channels, and foundations. Bricks are made from a mixture of soil and water. In this study, the process of making bricks will be tried to mix the soil with the additional material of rice husk ash to determine the effect of changes in the mechanical properties of the bricks in terms of the shrinkage test and compressive strength test. The soil sample used is a type of clay soil originating from Suakarsa Village, Teluk Gelam District, Ogan Komering Ilir Regency. This study used a sample of block-shaped bricks with a length of 19.5 cm, a width of 9.5 cm, and a height of 9 cm. The variations in the composition of rice husk ash added were 0%, 3%, 4%, 5% and 6%. The addition of rice husk ash with a composition percentage of 3% to 6% can affect the mechanical properties of the bricks, namely reducing burnt losses and increasing the compressive strength of the bricks. The minimum burn value was achieved in the percentage of rice husk ash with a variation of 6%, namely by 37.55% burn loss. The optimum compressive strength value is achieved in the percentage of rice husk ash with a variation of 3% with 14 days of age, the compressive strength value is 76.88 Kg / cm². Key Words : Bricks, Rice Husk Ash, Compressive Strength.

Use of Water Glass from Rice Husk and Bagasse Ashes in the Preparation of Fly Ash Based Geopolymer

2019 ◽  
Vol 798 ◽  
pp. 364-369 ◽  
Author(s):  
Khemmakorn Gomonsirisuk ◽  
Parjaree Thavorniti
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Ball Mill ◽  
Water Glass ◽  
Rice Husk Ash ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Preparation Process

The aim of this work is to study the feasibility of preparation of fly ash based geopolymer using sodium water glass from agricultural waste as alternative activators. Rice husk ash and bagasse ash were used as raw materials for producing sodium water glass solution. The sodium water glass were produced by mixing rice husk ash and bagasse ash with NaOH in ball mill and boiling. The prepared sodium water glass were analyzed and used in geopolymer preparation process. The geopolymer paste were prepared by adding the obtained water glass and NaOH with fly ash. After cured at ambient temperature for 7 days, mechanical properties were investigated. Bonding and phases of the geopolymer were also characterized. The geopolymer from rice husk ash presented highest compressive strength about 23 MPa while the greatest for bagasse ash was about 16 MPa.

Assessment of Rice Husk Ash (RHA) and Calcium Chloride (CaCl2) on Compressive Strength of Concrete Grade 20

2018 ◽  
Vol 40 ◽  
pp. 22-29
Author(s):  
Joseph A. Ige ◽  
Mukaila A. Anifowose ◽  
Samson O. Odeyemi ◽  
Suleiman A. Adebara ◽  
Mufutau O. Oyeleke
Keyword(s):  
Compressive Strength ◽  
Calcium Chloride ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Conventional Concrete ◽  
Compressive Strength Test ◽  
Compressive Strength Of Concrete ◽  
Strength Result

This research assessed the effect of Nigerian rice husk ash (RHA) and calcium chloride (CaCl2) as partial replacement of cement in concrete grade 20. Rice husk ash (RHA) is obtained by combustion of rice husk in a controlled temperature. The replacement of OPC with rice husk ash (RHA) were 0%, 5%, 10%, 15% and 20%. 1% of Calcium Chloride was blended with OPC/RHA in all the test specimens except from control mix. Concrete cubes of sizes 150mm x 150mm x 150mm were cast and cured in water for 7, 14 and 28 days respectively. Slump test was conducted on fresh concrete while density test and compressive strength test were conducted on hardened concrete. The slump results revealed that the concrete becomes less workable (stiff) as percentage increases. The compressive strength result at 28 days revealed that 5%RHA/1%CaCl2 have the highest strength of 26.82N/mm2 while 20%RHA/1%CaCl2 have the lowest strength (21.48N/mm2). Integration of 5%RHA/1%CaCl2 and 10%RHA/1%CaCl2 as cement replacement will produce a concrete of higher compressive strength compared to conventional concrete in grade 20 concrete.

scholarly journals The Effect of Rise Husk Ash on Concrete Mixing Quality Formula

2020 ◽  
Vol 4 (1) ◽  
pp. 29-36
Author(s):  
Hurul 'Ain ◽  
Alan Putranto ◽  
Betti Ses Eka Polonia ◽  
Ahmad Ravi
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Testing Machine ◽  
Test Material ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Additional Material ◽  
Material Sources ◽  
Alternative Material

The effect of the addition of rice husk ash (rice husk ash) to the K-175 formula quality concrete mixture, as an aggregate mixture to the concrete compressive strength test using a Compression Testing Machine to get the compressive strength value of concrete and can be used as an alternative material as an additional material in making concrete in improving the quality of building construction. The study uses K-175 concrete quality characteristics as a test material. Test object in the shape of a cube with a size of 15cm x 15cm. With 4 variations in levels of addition of rice husk ash by 0%, 1.5%, 3.5%, and 5% by weight of cement. The husk ash used is the husk ash that escaped the 2.36 mm filter size. From each type of mixture made 9 test specimens, every 3 specimens for the age of concrete 7 days, 14 days and 28 days. Concrete mortar design using ASTM method. With material sources using fine aggregate from the Pawan Ketapang River and coarse aggregate from Merak, Banten. Stages of implementation include examining the nature of aggregate materials, sample making, and testing of concrete compressive strength.

scholarly journals Microstructure and Durability Properties of Lightweight and High-Performance Sustainable Cement-Based Composites with Rice Husk Ash

2021 ◽  
Author(s):  
Gökhan Kaplan ◽  
Mohamed A.Salem Elmekahal
Keyword(s):  
Mechanical Properties ◽  
Weight Loss ◽  
Compressive Strength ◽  
Greenhouse Gases ◽  
Rice Husk ◽  
High Performance ◽  
Rice Husk Ash ◽  
Drying Shrinkage ◽  
Environmental Damage ◽  
Sustainable Solutions

Abstract Sustainable solutions are investigated to reduce the environmental damage caused by greenhouse gases and CO2 emissions. Cement is a construction material responsible for greenhouse gases and CO2 emissions. Thus, CO2 emissions are reduced by using replacement materials such as rice husk ash instead of cement. This study investigated the durability and mechanical properties of lightweight and high-performance, sustainable cement-based composites. A foaming agent was used to reducing the unit weight of the mixtures. Also, pumice powder (PP) and rice husk ash (RHA) were used to improve cement-based composites' durability and mechanical properties. The density of mixtures varies between 1666–2205 kg/m3. The early age strength of the mixes using 12.5% RHA has increased. The mixtures' compressive strength (91-days) with 25% RHA and 50% PP was 46.6 MPa. As the PP content of mixes increased, drying shrinkage values increased. Expansions decrease as the initial compressive strength increases in mixtures exposed to sulfate. As RHA and PP's ratio increased, weight loss decreased in mixes exposed to HCl, while weight loss increased in mixes exposed to H2SO4. It was determined that the content of CH(OH)2 is important in mixes exposed to HCl, and impermeability is important in mixes exposed to H2SO4. It has been observed that the initial compressive strength is also important in mixes exposed to the freeze-thaw effect. As the foam content of the mixes increased, the compressive strength decreased while the drying shrinkage increased. As a result, using up to 25% RHA has increased the performance of cement-based composites.

scholarly journals Influence of Rice Husk Ash on the Properties of Concrete

2016 ◽  
Vol 9 (1) ◽  
pp. 29-33
Author(s):  
MB Hossain ◽  
KM Shaad ◽  
MS Rahman ◽  
P Bhowmik
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Lightweight Concrete ◽  
Physical And Mechanical Properties ◽  
Test Results ◽  
Structural Concrete ◽  
Conventional Concrete

This research was carried out to investigate various physical properties of Rice Husk Ash (RHA) and, some physical and mechanical properties of concrete incorporating RHA in different proportions. The concrete specimens were tested at 7, 21 and 28 days after curing. Test results revealed that the specific gravity of RHA was found lower than that of sand. The density of concrete containing RHA was recorded between 80-110 lb.ft-3, which is lower than conventional concrete. Water absorption was found increasing with the increase of RHA content in concrete specimens. There were significant variations in compressive strength values of concrete containing 5%, 10% and 20% volume of RHA. The compressive strength of 5% RHA specimen was 150-200% higher than that of other specimens. Hence, upto 5% replacement of RHA could be recommended for making normal lightweight concrete. The splitting tensile strength was about 9-10% of compressive strength. It was concluded that upto 5% RHA can be used effectively in making normal lightweight concrete. The higher percentage of RHA could be used in making non-structural concrete where the strength of concrete is not concerned.J. Environ. Sci. & Natural Resources, 9(1): 29-33 2016

scholarly journals Efficiency of rice husk ash and fly ash as reactivity materials in sustainable concrete

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Mohamed Amin ◽  
Bassam Abdelsalam Abdelsalam
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Physical Properties ◽  
Rice Husk ◽  
Water Permeability ◽  
Rice Husk Ash ◽  
Experimental Program ◽  
Hardened Concrete ◽  
Concrete Mixtures

AbstractMany environmental problems occur due to rice husk burning and emissions from coal-fired power stations. This paper presents the recycling of rice husk ash (RHA) and fly ash (FA) from power plants as reactivity materials for producing sustainable (green) concrete. This research aims to investigate the efficiency of RHA and FA replacement ratios on fresh and hardened properties of concrete mixtures. The experimental program consisted of 21 concrete mixtures, which were divided into three groups. The cementitious material contents were 350, 450 and 550 kg m−3 for groups one, two and three, respectively. The replacement ratios from the cement content were 10, 20 and 30% respectively, for each recycle material (RHA and FA). The slump and air contents of fresh concrete were measured. The compressive strength, splitting tensile strength, flexural strength, modulus of elasticity and bond strength of hardened concrete as mechanical properties were also analyzed. The compressive strength was monitored at different ages: 3, 7, 28, 60 and 90 d. The water permeability test of hardened concrete as physical properties was conducted. Test results showed that the RHA and FA enhanced the mechanical and physical properties compared with the control mixture. The cementitious content of 450 kg m−3 exhibited better results than other utilized contents. In particular, the replacement ratios of 10 and 30% of RHA presented higher mechanical properties than those of FA for each group. The water permeability decreased as the cementitious content increased due to the decrease in air content for all mixtures. The water permeability loss ratios increased as the cementitious content decreased.

Influence of Temperature on the Substitution of Quartz by Rice Husk Ash (RHA) in Porcelain Composition

2013 ◽  
Vol 465-466 ◽  
pp. 1297-1303 ◽  
Author(s):  
Hassan Usman Jamo ◽  
Mohamad Zaky Noh ◽  
Zainal Arifin Ahmad
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Rice Husk ◽  
Glassy Phase ◽  
Rice Husk Ash ◽  
Physical And Mechanical Properties ◽  
Agricultural Industry ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

Rice Husk Ash (RHA) is a by-product of the agricultural industry which contains high amount of silica. Active silica from RHA has been used progressively to substitute quartz in a porcelain composition and the effect this substitution in relation to temperature on physical and mechanical properties has been investigated. It was found that progressive substitution of RHA in a porcelain composition resulted in early vitrification of the mixture. The compressive strength was highest and the porosity was the least at a temperature of 1200°C on 20wt% substitution of RHA. The improvement in the properties could be attributed to sharp changes in the microstructural features as a result of increase in mullite and glassy phase simultaneously. Hence the extension of study on microstructure and morphology has influence on the physical and mechanical properties.

Performance of Mortar Grouts Incorporating Rice Husk Ash and Fly Ash

2019 ◽  
pp. 31-48
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Apparent Volume ◽  
Partial Replacement ◽  
Hardened State ◽  
Strength And Durability ◽  
Penetration Tests

Chapter 3 is based on performance of mortar grouts incorporating rice husk ash (RHA) and fly ash (FA). Detailed experimental work was conducted to investigate the mechanical properties of mortar grout using RHA and FA as partial replacement of cement. This study investigated the compressive strength and durability of mortar grouts in their hardened state. Durability tests such as water absorption, apparent volume of permeable voids, sorptivity, and rapid chloride penetration tests are researched. Detailed results and discussion which focused on mechanical properties as well as durability of hardened state mortar grout are presented. It was confirmed that the inclusion of blended RHA and FA significantly improved the compressive strength of mortar grouts. The durability of mortar grout increased along with a longer curing time. Hence, RHA and FA can partially replace cement in the production of mortar grouts.

Fresh properties and compressive strength of self compacting concrete with fines aggregate replacement using red brick powder and rice husk ash

2020 ◽  
Vol 17 (4) ◽  
pp. 473-480
Author(s):  
Hakas Prayuda ◽  
Fanny Monika ◽  
Martyana Dwi Cahyati
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Construction Projects ◽  
Rice Husk Ash ◽  
High Strength ◽  
Fine Aggregate ◽  
Fresh Properties ◽  
Self Compacting Concrete ◽  
Content Type ◽  
Brick Powder

Purpose This study aims to discuss the results of fresh properties and compressive strength of self-compacting concrete using ingredients added red brick powder as a fine aggregate substitute. The results of the study were compared with the properties of fresh properties and compressive strength with ingredients added by rice husk ash, which is also a fine aggregate substitute. In addition, the initial compressive strength of each of these variations was also examined to accelerate the completion time of construction projects using self-compacting concrete. Design/methodology/approach This research was conducted in a laboratory by testing the characteristics of fresh and hardened properties of self-compacting concrete. Findings Fresh properties testing is carried out in the form of V-funnel, flow table, J-ring and L-box where all specimens produce quite varied flow rates. Compressive strength was estimated at ages 3, 7, 14 and 28 days with cylindrical specimens with a diameter of 150 mm and a height of 300 mm. The variation of fine aggregate substitutes used is 20, 40 and 60 per cent. Originality/value From the results of the compressive strength, it can be concluded that the added material is categorized as self-compacting concrete with high initial compressive strength, while at 28 days, the compressive strength test results are categorized as high-strength self-compacting concrete.

Effect of Rice Husk Ash to Mechanical Properties of Clay Bricks

2013 ◽  
Vol 770 ◽  
pp. 50-53 ◽  
Author(s):  
Sutas Janbuala ◽  
Udomsak Kitthawee ◽  
Mana Aermbua ◽  
Pitak Laoratanakul
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Water Absorption ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Clay Bricks

This research explored the effect of rice husk ash on the mechanical properties of clay bricks, for example, strength, density, and water absorption. Rice husk ash, varying 0 to 5% by weight, was added. The results showed that porosity increased when adding rice husk. Adding 3% rice husk ash by weight showed the best mechanical brick properties, with 13.50 MPa of compressive strength, 1.69 g/cm3 of density, and 11.50% of water absorption.

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