scholarly journals Rice husk ash as an indigenous construction material in building process, a statistical evaluation

2021 ◽  
Vol 1 (1) ◽  
pp. 028-038
Author(s):  
Ndubuisi Micheal Odoanyanwu ◽  
Ifeanyichukwu Hyginus Ivoke ◽  
Maduabuchi Vitalis Irouke
Keyword(s):  
Production Process ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Process Analysis ◽  
Construction Material ◽  
Climatic Conditions ◽  
Estimation Methods ◽  
Confidence Estimation ◽  
Missing Value ◽  
Value Analysis

The research described the rice husk ash as an indigenous construction material used in building production process of the concrete design mix. The production process is analyzed statistically. The quality of concrete mixture is of inevitable concern to all stakeholders in the construction industry and on building production process in the zone when the climatic conditions of the zone are considered. The mix design ratio is investigated and all the prevailing construction/production practices are considered statistically to portray the experimental results in the system. The statistical tools applied in this research for clarity of the results are descriptive, normality, missing value analysis, process statistical summary and confidence estimation methods of statistics. The experimental matrix was designed using three level four factors. Twenty five (25) experimental runs was conducted the M-Estimator was used to obtain the missing value analysis, the estimate of the output parameter at each selected factor levels. The results show that all the factors selected are fit for the experimental analysis. The factors in M-estimators show that the response (Slump) can be as low as 68.8924mm and as high as 145.5352mm. In descriptive statistic, the mean for the parameters: cement, water, fine husk, coarse aggregate and slump are 242.56 kg/m3, 6.00 kg/m3, 568.56 kg/m3, 111544 kg/m3 and 110.84mm respectively. The tools portray the necessary information in the data to understand what the data information for further experimental process analysis.

scholarly journals Statistical Analysis of Rice Husk Ash as a Construction Material in Building Production Process

2019 ◽  
pp. 1-8
Author(s):  
John U. Ezeokonkwo ◽  
Chukwuemeka D. Ezeliora ◽  
Echefuna C. Mbanusi
Keyword(s):  
Statistical Analysis ◽  
Production Process ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Process Analysis ◽  
Construction Material ◽  
Climatic Conditions ◽  
Estimation Methods ◽  
Confidence Estimation

This study considers the statistical analysis of rice husk ash as a construction material in building production process. The quality of concrete mixture is of inevitable concern to all stakeholders in the construction industry in the zone when the climatic conditions of the zone are considered. The mix ratio is examined and all the prevailing construction/production practices are considered statistically. The statistical tools employed are descriptive, normality, process statistical summary and confidence estimation methods of statistics. The tools portrays the necessary information in the data to understand what the data information for further production process analysis.

Prospects of rice husk ash as a construction material

2022 ◽  
pp. 61-92
Author(s):  
Zahid Hossain ◽  
Kazi Tamzidul Islam
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Construction Material

scholarly journals Study on strength and durability characteristics of polypropylene fiber reinforced blended concrete tiles

2018 ◽  
Vol 7 (3) ◽  
pp. 1544
Author(s):  
N K. Amudhavalli ◽  
M Harihanandh
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Construction Material ◽  
Polypropylene Fiber ◽  
Fiber Reinforced ◽  
Abrasion Test ◽  
Brittle Behavior ◽  
Curing Period ◽  
Strength And Durability ◽  
Constant Percentage

Concrete is brittle and widely used as an artificial construction material with incorporation of cement, water and aggregate in necessary proportions. To overcome the brittle behavior of composites, fibers and admixture are added to the concrete. In this present investigation Polypropylene Fiber is added in varying percentage (0.2%, 0.4%, 0, 6%, 0.8% and 1%) to the weight of cement and constant percentage of Rice Husk Ash (15%) is replaced with cement. The polypropylene fiber reinforced blended concrete tiles of size 300mm x 300mm x 30mm are cast as per the code and tested at 28 days curing period. Flexural strength, Abrasion test, Dimensional quality and water absorption are studied. Among different proportion of Polypropylene Fiber Reinforced Blended Concrete, the best performance is achieved by the combination of 15% of Rice Husk Ash with 0.6% of Polypropylene Fiber.  

Value Analysis and Properties Investigation of High Performance Rice Husk Ash Concrete

2013 ◽  
Vol 773 ◽  
pp. 293-297 ◽  
Author(s):  
Lee Kuo Lin ◽  
Wei Sheng Wu ◽  
Hubert Lee
Keyword(s):  
Rice Husk ◽  
High Performance ◽  
Rice Husk Ash ◽  
High Performance Concrete ◽  
Green Building ◽  
Global Village ◽  
Value Analysis ◽  
Carbon Reduction ◽  
Pozzolanic Material ◽  
Strength And Durability

During recent years, the Taiwan government launches issues of green building , sustainable engineering , carbon reduction and etc. , to promote balance construction and environment ecology. One of the most important materials in those engineering issues is cement which is used widely in construction industry. Cement emits 0.85 tons of carbon dioxide (CO2) for each ton of cement used in average. This not only causes the waste of energy but also againsts the conception of environmental protection. This research uses the rice husk ash (RHA) which people always regards as the waste material as a pozzolanic material to replace part of cement to make high performance concrete (HPC). Then makes the value analysis and properties investigation for HPC. Based on this research, rice husk (RH) will contain lots of silicon dioxide (SiO2) after burning into RHA. If use RHA to replace part of cement, it can get appropriate properties of compressive strength and durability. More important is that by replacing part of cement, it not only will reduce the emission of CO2 and save money but also reach the goal of global village protection on earth.

Study on some biological characteristics and yield capacity of milky mushroom (Calocybe indica) cultivated on different substrates at Quy Nhon University

2021 ◽  
Vol 15 (1) ◽  
pp. 95-101
Author(s):  
Hong Duc Ngo ◽  
◽  
Vuong Hai Nguyet Le ◽  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Alluvial Soil ◽  
Growth Yield ◽  
Climatic Conditions ◽  
Soil Treatment ◽  
Loamy Soil ◽  
Net Profit ◽  
Yield Capacity ◽  
Calocybe Indica

The aim of this study was to determine the ability of growth, yield for Milky mushroom (Calocybe indica) cultivated under climatic conditions in Binh Dinh province. Milky mushroom were cultivated on four different substrates: sawdust + alluvial soil (treatment 1); sawdust + alluvial soil + rice husk ash (treatment 2); sawdust + loamy soil (treatment 3); sawdust + loamy soil + rice husk ash (treatment 4). The experiment was carried out in a 30 m2 in two seasons: rainy and sunny season. The highest economic yields were obtained 640.93 kg/1000 spawned bags with net profit of 17.927.200 VND for treatment 2 in rainy season and 590.4 kg/1000 spawned bags with 15.906.000VND profit in the duration of 3.5 months. Generally, research results showed that Milky mushroom is suitable with cultivated condition in Quy Nhơn of Binh Dinh province contributing to the enrichment of mushroom cultivated in province.

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 Use of Rice Husk Ash (RHA) as a Supplementary Cementitious Material in Producing Normal Concrete

2019 ◽  
Vol 271 ◽  
pp. 07007
Author(s):  
Kazi islam ◽  
Zahid Hossain
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Construction Material ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Hardened Concrete ◽  
Type I ◽  
Continuous Increase ◽  
Material Sources ◽  
By Products

With the continuous increase of scarcity of the natural construction material sources and environmental awareness, utilization of wastes/by-products in the construction industry has become an attractive field of study. Several industrial by-products produced from different manufacturing processes have been considered for various usages in the construction field. This paper briefly describes the potential use of Rice Husk Ash (RHA) as Supplementary Cementitious Materials (SCM). Here, three different grades of RHA (600-RHA, 150-RHA, and 44-RHA) in two different percentages (10 % and 20 %) of replacement of Type I Ordinary Portland Cement (OPC) were investigated. Laboratory tests on the fresh concrete mix as well as the mechanical properties of the hardened concrete were performed. It was observed that coarser RHA-modified concrete (600-RHA and 150-RHA) showed reduced strength properties while finer RHA (44-RHA) exhibited improved concrete properties. Moreover, the incorporation of RHA in concrete was found to be effective in mitigating alkaline expansion.

scholarly journals PREDIKSI KUAT TEKAN PERVIOUS PAVING DENGAN CAMPURAN ABU SEKAM DENGAN MENGGUNAKAN PEMODELAN ARTIFICIAL NEURAL NETWORK (ANN)

2019 ◽  
Vol 1 (1) ◽  
pp. 46-52
Author(s):  
Erna Suryani ◽  
Wahyu Naris Wari
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Compressive Strength ◽  
Rice Husk ◽  
Empirical Equation ◽  
Rice Husk Ash ◽  
Asphalt Pavement ◽  
Construction Material ◽  
Artificial Neural ◽  
Artificial Neural Network Ann

Pervious Paving (Paving Berpori) adalah material konstruksi yang terbuat dari semen, air, agregat dan bahan campuran lainnya. Paving berpori dapat diapilkasikan pada trotoar, area bermain dan jalan perumahan. Dengan menggunakan paving berpori air akan langsung meresap, sehingga akan mencegah adanya genangan air pada lapis permukaan paving. Metode penelitian yang digunakan adalah menggunakan AAPA (Australian Asphalt Pavement Association) dimana dilakukan sistem Trial Eror. Campuran yang digunakan adalah 1:4, dengan menggunakan gradasi terbuka. Kuat tekan yang di rencanakan yaitu 18,00 MPa, masuk dalam kategori mutu B untuk tempat parkir mobil, pejalan kaki dan taman kota. Campuran paving menggunakan abu sekam padi sebagai reduksi semen dengan persentase 0%, 10%, 20% dan 30%. Pelaksanaan pekerjaan dimulai dari pengambilan bahan baku, pengujian material, perencanaan komposisi dan pembuatan benda uji dengan ukuran P = 21 cm, L = 11,5 cm dan T = 6 cm. Uji kuat tekan dilakukan untuk mengetahui pengaruh abu sekam sebagai bahan reduksi semen pada Paving Berpori. Nilai kuat tekan yang didapatkan akan menjadi input pada program Matlab untuk mendapatkan pemodelan Persamaan Empiris dengan ARTIFICIAL NEURAL NETWORK (ANN) sehingga didapatkan nilai kuat tekan dari berbagai komposisi penambahan bahan abu sekam. Dari hasil penelitian didapatkan persentase tertinggi dicapai pada tambahan abu sekam 30%.Kata kunci : Abu sekam, Artificial Neural Network (ANN), Pervious Paving, Kuat tekan, Persamaan EmpirisPervious Paving is a construction material made from cement, water, aggregate and other materials. Pervious paving can be applied to right on sidewalks, play ground and residential roads. By using Pervious Paving, the water will absorb quickly, so it will prevent the puddles on the surface layer. AAPA (Australian Asphalt Pavement Association) is the reserach methode which we used with Trial and Eror. The mixture of ingredients is 1: 4 with the open gradation. The compressive strength designed is 18 MPa, which is in category B for parking car, pedestrian and city park. Paving mixture consisted of rice husk ash as cement reduction with a percentage of 0%, 10%, 20% and 30%. The work starting from the taking of raw materials, material testing, composition planning and the making of specimens with sizes P = 21 cm, L = 11.5 cm and T = 6 cm. The compressive strength test was conducted to determine the effect of husk ash addition. The compressive strength will be input to the Matlab program to obtain the Empirical Equation modelling with ARTIFICIAL NEURAL NETWORK (ANN). Based on the results of the study, the highest percentage was achieved in the mixture with an addition of 30% rice husk ash.Keywords: Rice husk ash, Artificial Neural Network (ANN), Pervious Paving, Compressive strength, Empirical Equation

scholarly journals Rice Husk Ash-Based Geopolymer Binder: Compressive Strength, Optimize Composition, FTIR Spectroscopy, Microstructural, and Potential as Fire-Retardant Material

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4373
Author(s):  
Mohd Salahuddin Mohd Basri ◽  
Faizal Mustapha ◽  
Norkhairunnisa Mazlan ◽  
Mohd Ridzwan Ishak
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Construction Material ◽  
Fire Retardant ◽  
Major Effect ◽  
Material Behavior ◽  
Promising Alternative ◽  
Fire Retardant Properties ◽  
Geopolymer Binder

Compressive strength is an important property in construction material, particularly for thermal insulation purposes. Although the insulation materials possess high fire-retardant characteristics, their mechanical properties are relatively poor. Moreover, research on the correlation between fire-retardant and compressive strength of rice husk ash (RHA)-based geopolymer binder (GB) is rather limited. In addition, previous studies on RHA-based GB used the less efficient one-factor-at-a-time (OFAT) approach. In understanding the optimum value and significant effect of factors on the compressive strength, it was deemed necessary to employ statistical analysis and a regression coefficient model (mathematical model). The objective of the study is to determine the effect of different material behavior, namely brittle and ductile, on the compressive strength properties and the optimum material formulation that can satisfy both compressive strength and fire-retardant properties. The factors chosen for this study were the rice husk ash/activated alkaline solution (RHA/AA) ratio and the sodium hydroxide (NaOH) concentration. Compressive strength and fire-retardant tests were conducted as part of the experiments, which were designed and analyzed using the response surface methodology (RSM). The microstructure of geopolymer samples was investigated using a scanning electron microscope (SEM). Results showed that RHA/AA ratio was highly significant (p < 0.000) followed by NaOH concentration (p < 0.024). When the RHA/AA ratio was at 0.7 to 0.8 and the NaOH concentration was between 12 and 14 M, high compressive strength above 28 MPa was recorded. Optimum compressive strength of approximately 47 MPa was achieved when the RHA/AA ratio and NaOH concentration were 0.85 and 14 M, respectively. Brittle samples with low Si/Al ratio of 88.95 were high in compressive strength, which is 33.55 MPa, and showed a high degree of geopolymerization. Inversely, ductile samples showed low compressive strength and degree of geopolymerization. Water content within the geopolymer binder had a major effect on its fire-retardant properties. Semi-ductile GB showed the best fire-retardant properties, followed by semi-brittle and brittle GB. Using RHA as an aluminosilicate source has proven to be a promising alternative.

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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