Impact of Improved Aeration on Decomposition Rate of Enriched Compost

 Agricultural activities tend to generate a substantial volume of animal and crop residues. Composting is the most economical and ecologically sustainable option to manage farmyard waste. However, it takes approximately three months to complete decomposition and contains lower plant nutrient percentages than inorganic fertilisers. This study aimed to reduce the decomposition time and improve the nutrient content of compost. Aerobic decomposition was enhanced by aeration inside the pile using a blower with 0.5 l min kg airflow. Paddy straw, poultry manure, goat manure, cattle manure and paddy husk ash were mixed in 3 1 1 1 1 ratio respectively as the raw materials and 3 of Eppawala Rock Phosphate was added to the mixture in weight basis. Six piles 150 X 100 X 80 cm were prepared, and three piles were aerated for six hours per day while other three piles were left to decompose under the ambient condition as the control. According to the results, aerated and control piles took 35 days and 65 days to complete the decomposition. Total N, available P, exchangeable K, C N ratio, pH, EC and CEC were analysed in compost samples from aerated after 35 days and controls, and the results were, 20.5 g kg 1, 1.8 g kg 1, 10.4 g kg 1, 7, 8.8, 4.3 mS cm 1, 19.3 cmol kg 1 and 17.8 g kg 1, 1.5 g kg 1, 9.9 g kg 1, 8.5, 8.8, 3.64 mS cm 1, 21.3 cmol kg 1 respectively. Data were analysed using SAS 9.0 software with a 95 confidence interval. The results revealed a significant increment in total N, exchangeable K, C N ratio, EC and CEC in aerated piles compared to controls. And the nutrient composition of both methods was significantly higher than the commercial compost. Therefore, it can be concluded that decomposition time can be effectively reduced and the nutrient level can be increased by artificial aeration and nutrient enrichment, respectively. However, further studies are recommended to study the economic feasibility.

 

by D. M. S. H. Dissanayaka | V. P. T. Dhananjaya | E. J. Kosgollegedara | S. Karthigayini "Impact of Improved Aeration on Decomposition Rate of Enriched Compost" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38557.pdf 

Paper Url: https://www.ijtsrd.com/engineering/agricultural-engineering/38557/impact-of-improved-aeration-on-decomposition-rate-of-enriched-compost/d-m-s-h-dissanayaka

callforpaperchemistry, chemistryjournal, openaccessjournalofchemistry, 

Study on Properties of Concrete using Rice Husk Ash and Fly Ash with Sisal Fiber as Partial Replacement of Fine Aggregate and Cement

Concrete is the most widely used construction material in the world it is a mixture of cement, sand, coarse aggregate and water. Storage and safe disposal of industrial by product such as fly ash, SF and rice husk ash is a huge problem everywhere, reuse of these waste eliminates reduce the problem. this experiment fine aggregate is replaced 0 ,10 ,20 ,30 and 40 of its weight by rice husk ash and cement is replaced 20 of its weight by fly ash and SF in all concrete mix and there effects are studied.In this experiment the compressive strength of the concrete is increased. The compressive strength of the concrete by replacing the 20 sand by RHS and 20 cement by the 19 fly ash and 1 SF the strength increases at 32.52 to 37.8 in M 30 concrete. After adding the RHA the strength is Decreases. The flexure strength of the concrete by replacing 20 sand by RHS and 20 cement by the 19 fly ash and 1 SF the strength increases at 5.2 to 6.69 in M 30 concrete. After adding the RHA the strength is Decreases Thus, flexure strength is also increase by including the RHS. It also reduces the consumption of the cement. The split tensile strength of the concrete by replacing 20 sand by RHS and 20 cement by the 19 fly ash and 1 SF the strength increases at 3.09 to 4.49 in M 30 concrete. After adding the RHA the strength is Decreases. Hence by adding the fly ash with stone dust is also increase the tensile strength of the concrete. Hence saving in cost is two ways cost of sand and cement. 

by Yash Dixit | Nitesh Kushwaha "Study on Properties of Concrete using Rice Husk Ash and Fly Ash with Sisal Fiber as Partial Replacement of Fine Aggregate & Cement" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38665.pdf 

Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/38665/study-on-properties-of-concrete-using-rice-husk-ash-and-fly-ash-with-sisal-fiber-as-partial-replacement-of-fine-aggregate-and-cement/yash-dixit

callforpaperchemistry, chemistryjournal, openaccessjournalofchemistry 

An Analysis of Mechanical Properties and Flexural Behavior of Concrete Slabs Reinforced with H.F.R.P Reinforcements A Review

In the era of concrete, concrete is exposed to chemical, such as carbonation and chloride adulteration break down the alkaline barrier in the cement. Subsequently, steel in the concrete becomes corrosive. Such phenomena lead to erosion of concrete at the reinforcement level, cracking and spelling of concrete due to volume increase of steel reinforcement. Different methods were investigated to overcome corrosion by numerous researchers.According to A.S.T.M D792 13 standards the density of H.F.R.P bars have been evaluated the experimental value with 0.1mg precision. As per the standards, the H.F.R.P bars are weighed. Then, the H.F.R.P bar is immersed in distilled water at 230C and the wet weight of the bar is noted. The weight of the Sinker in immersed condition is also noted.The laboratory tests carried out to evaluate the physical and mechanical properties of the newly developed H.F.R.P bars and are compared with that of conventional bars. The bond properties of H.F.R.P bars with concrete is also determined. Finally, it explains the experimental investigations on the flexural behavior of concrete one way slabs reinforced with H.F.R.P reinforcements under static loading and are compared with conventional ones. The stress strain performance of the sand coated H.F.R.P bar is linear, lacking yield point up to the failure transverse shear strength is 3 times lesser than the tensile strength of the H.F.R.P bars. Thermal properties of fibers are substantially different in the longitudinal and transverse direction. Therefore the thermal characteristics vary between products according to the fiber, matrix and the fiber volume ratio. In this study the longitudinal Coefficient of linear thermal expansion is7.5 x 10 6 oC to 9x 10 6 oC. Whereas the transverse Coefficient of linear thermal expansion is between 15 x 10 6 oC to 20 x 10 6 oC. Load deflection graphs drawn exhibits the accordance between experimental and FEM ANSYS observations. The reduced deflection of FEM is due to the rigidness of meshing. The results also confer about the effect of tension stiffening and the bond slip. From the comparison it has been observed that experimental deflections vary from 1.03 to 1.37 times higher than the FEM deflections.

 

by Prerna Vaidya | Prof. Nitesh Kushwaha | Prof. Afzal Khan "An Analysis of Mechanical Properties and Flexural Behavior of Concrete Slabs Reinforced with H.F.R.P Reinforcements: A Review" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38689.pdf 

Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/38689/an-analysis-of-mechanical-properties-and-flexural-behavior-of-concrete-slabs-reinforced-with-hfrp-reinforcements-a-review/prerna-vaidya

callforpaperlanguages, languagesjournal, bestjournal

Study on Properties of Concrete using Rice Husk Ash and Fly Ash with Sisal Fiber as Partial Replacement of Fine Aggregate and Cement A Review

Concrete is the most widely used construction material in the world it is a mixture of cement, sand, coarse aggregate and water. Storage and safe disposal of industrial by product such as fly ash, SF and rice husk ash is a huge problem everywhere, reuse of these waste eliminates reduce the problem. This experiment fine aggregate is replaced 0 ,10 ,20 ,30 and 40 of its weight by rice husk ash and cement is replaced 20 of its weight by fly ash and SF in all concrete mix and there effects are studied.In this experiment the compressive strength of the concrete is increased. The compressive strength of the concrete by replacing the 20 sand by RHS and 20 cement by the 19 fly ash and 1 SF the strength increases at 32.52 to 37.8 in M 30 concrete. After adding the RHA the strength is Decreases. The flexure strength of the concrete by replacing 20 sand by RHS and 20 cement by the 19 fly ash and 1 SF the strength increases at 5.2 to 6.69 in M 30 concrete. After adding the RHA the strength is Decreases Thus, flexure strength is also increase by including the RHS. It also reduces the consumption of the cement. The split tensile strength of the concrete by replacing 20 sand by RHS and 20 cement by the 19 fly ash and 1 SF the strength increases at 3.09 to 4.49 in M 30 concrete. After adding the RHA the strength is Decreases. Hence by adding the fly ash with stone dust is also increase the tensile strength of the concrete. Hence saving in cost is two ways cost of sand and cement. 

by Yash Dixit | Nitesh Kushwaha "Study on Properties of Concrete using Rice Husk Ash and Fly Ash with Sisal Fiber as Partial Replacement of Fine Aggregate & Cement: A Review" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38662.pdf 

Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/38662/study-on-properties-of-concrete-using-rice-husk-ash-and-fly-ash-with-sisal-fiber-as-partial-replacement-of-fine-aggregate-and-cement-a-review/yash-dixit

callforpaperlifesciences, lifesciencesjournal, researchpapers

Nano Manufacturing An Introduction

Nanotechnology involves the manipulation of matter in atomic and molecular scale. It is emerging as a principal discipline that is integrating chemistry and materials science. It holds the promise of being a main driver of technology with significant impact for all aspects of society. Nano manufacturing is manufacturing at the nanoscale. It is an interdisciplinary field covering physics, chemistry, biology, materials science, and engineering. This paper provides an introduction to nano manufacturing. 

by Matthew N. O. Sadiku | Olukayode R. Egunjobi | Sarhan M. Musa "Nano Manufacturing: An Introduction" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38539.pdf 

Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/38539/nano-manufacturing-an-introduction/matthew-n-o-sadiku

callforpaperchemistry, chemistryjournal, openaccessjournalofchemistry 

Study on Properties of Concrete using Rice Husk Ash and Fly Ash as a Partial Replacement of Fine Aggregate and Cement with Sisal Fiber

Concrete is the most widely used construction material in the world it is a mixture of cement, sand , coarse aggregate and water.Storage and safe disposal of industrial by product such as fly ash, SF and rice husk ash is a huge problem everywhere, reuse of these waste eliminates reduce the problem.In this experiment fine aggregate is replaced 0 ,10 ,20 ,30 and 40 of its weight by rice husk ash and cement is replaced 20 of its weight by fly ash and SF in all concrete mix and there effects are studied.In this experiment the compressive strength of the concrete is increased. It is found that the strength increases with the replacement of cement and fine aggregate by fly ash at about 19 , SF at 1 and RHS at about 40 , and beyond this the workability of concrete will not achieved. 

by Yash Dixit | Nitesh Kushwaha "Study on Properties of Concrete using Rice Husk Ash and Fly Ash as a Partial Replacement of Fine Aggregate & Cement with Sisal Fiber" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38660.pdf 

Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/38660/study-on-properties-of-concrete-using-rice-husk-ash-and-fly-ash-as-a-partial-replacement-of-fine-aggregate-and-cement-with-sisal-fiber/yash-dixit

callforpapermedicalscience, medicalsciencejournal

BIM Competencies for Minimizing the Construction Remnant of Project Moving Forward from Linear to Circular Economy

A modern lifestyle, alongside the advancement of technology has led to an increase in the type of waste and its amount and being generated, leading to a waste disposal catastrophe. Therefore in the past decades, construction and demolition CandD waste issues have received increasing attention from both practitioners and as well as from researchers around the world. An affordable waste management action to reduce waste at all phases of design and construction with special consideration to the long term environmental and economic impacts of continuous waste generation. Therefore, many studies on coherent CandD waste minimization and management have been conducted. Although 21 process related and 8 technology related limitations in CandD waste management and minimization have not yet been resolved. Building information modeling BIM helps project participants improve the processes involved and technologies in the planning, design, construction, and demolition phases, thereby managing and minimizing CandD waste efficiently. Therefore, this paper identifies for coherent CandD waste management and minimization, such as phase planning, site utilization planning, 3D coordination, design review, quantity take off, construction system design, digital fabrication, and 3D control and planning BIM has the potential opportunities. The BIM based approaches would CandD waste management and minimization processes and technologies by addressing existing limitations through in depth literature review.

 

by Ms. K. Niranjana | Mrs. G. Anbu Neema "BIM Competencies for Minimizing the Construction Remnant of Project Moving Forward from Linear to Circular Economy" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd38642.pdf 

Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/38642/bim-competencies-for-minimizing-the-construction-remnant-of-project-moving-forward-from-linear-to-circular-economy/ms-k-niranjana

callforpaperphysics, physicsjournal