Sustainable Materials and Smart Practices最新文献

{"title":"Study on Physical and Mechanical Properties of Porous Concrete using Recycled Concrete Aggregate","authors":"T. Mukesh","doi":"10.21741/9781644901953-35","DOIUrl":"https://doi.org/10.21741/9781644901953-35","url":null,"abstract":"Abstract. While porous concrete has a poor compressive strength because of its porous structure, concrete will lead to failure when the load applied is high. With recycled concrete aggregate and PVA fibre, an attempt was made to improve porous concrete's physical and mechanical properties. The features of ingredients such as recycled concrete aggregate, cement, Polyvinyl alcohol fibre, and water were first discovered, and then the mix was created and cast. After proper curing, the mechanical properties of concrete were determined by conducting the following tests: compression strength, split tensile strength, and flexural strength, along with physical factors such as permeability. The findings reveal that using the aggregate size of 1012mm improves mechanical characteristics. Permeability was also excellent. On the other hand, strength increased as the percentage of PVA fibre grew and at a certain point strength as well as porosity decreased. The maximum strength was attained at an incorporation % of 1. The mechanical characteristics of the aggregate declined when the size increased, as the surface area available for the cement to bind them together shrank.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"386 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115059452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Analysis of Glass Fibre in Concrete","authors":"V. Gnanasundar","doi":"10.21741/9781644901953-28","DOIUrl":"https://doi.org/10.21741/9781644901953-28","url":null,"abstract":"Abstract. Compared compared to concrete in a construction, the essential portion of the structure has higher weight, however steel utilised as reinforcement has no weight. To address this problem, the Glass Fibre Reinforced Concrete (GFRC) material was developed. Polymers and glass fibre are impregnated in the cementation framework of GFRC, which is a material. Glass fibre, Fly ash, silica sand, Portland cement and water are all components of concrete. The glass content, mix procedure, and casting process all have an impact on the qualities of GFRC concrete. We present the fibre glass as well as other characteristic synthetic chemicals in GFRC to develop a material that is extremely solid and adaptableto construction.By this research, using 0.5 percent and 0.1 percent glass fibres increases compressive and flexural strength of concrete for 7,14 and 28 days with no admixtures.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120967417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance Assessment of Self Compacting Concrete Incorporating Mineral Admixtures","authors":"M. Ranjitham","doi":"10.21741/9781644901953-49","DOIUrl":"https://doi.org/10.21741/9781644901953-49","url":null,"abstract":"Abstract. Self-Compacting Concrete (SCC) is a newly constructed which need to be processed to be installed and assembled. It can discharge beneath its own weight, complete formwork, and achieve complete integration, at the same time in the existence of profusion reinforcement. SCC is a variety of high-strength concrete and expands to form devoid of the demand for mechanical vibrations. SCC is a non-removable concrete by its weight. The importance of concrete that you assemble is that it retains all the durability and characteristics of the concrete, meeting the expected operational requirements. Another way to diminish the expense of concrete for that is to use Mineral Admixtures (MA) such as Ground Granulated Blast furnace Slag (GGBS) Silica Fume (SF), and Fly Ash (FA), during mixing. The quantity of Portland cement was decreased by using mineral admixtures, expense of compaction will be competitive especially reason for this while using the mineral mixtures are waste or industrial product. In addition, the application of MA in the production of composite concrete not only provides economic benefits but also reduces the temperature of the hydration. The amalgamation of mineral ingredients additionally excludes the need for viscosity-improving chemical admixtures. Low water/cement (W/C) ratio which indicates to superior durability and exceptional mechanical integrity of the building. This experimental research paper familiarizes and reviewing the strength properties such as compression test, flexural strength and the split strength of SCC with different mineral compounds and compare the properties with Control Mix (CM) and workability tests of various mineral compounds (slump, L-box, U-box, and T50) also studied. From the Experimental investigation concluded that the impact of mineral mixtures on performance like compressive strength values, split tensile strength values and flexural strength values were increases as per European Federation of manufacturers for special concrete.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115870260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Experimental Study on the Impact of Incorporating Glass on the Photocatalytic Capacity of Concrete Blocks","authors":"S. Karthikeyan","doi":"10.21741/9781644901953-15","DOIUrl":"https://doi.org/10.21741/9781644901953-15","url":null,"abstract":"Abstract. Today’s world is more concerned about the preservation of natural sources. Consumption of less amount of natural resources in construction activities is equally important as energy saving after construction. To combine both the aspects, one such thing tried in this work is translucent concrete. As everyone knows, concrete is termed as traditional material for a building. The important property hidden in this concrete is light emission. When light hits the concrete, some amount light gets transmitted to the other side of concrete. This characteristic is achievable when optical fibers are included in concrete. Optical fiber is a medium where it is associated with the transmission of information as light pulses along the fiber. In addition, the use of glass as a coarse aggregate is also studied and it also plays a major role in strength of the concrete. Concrete blocks containing glass particles as a partial replacement for coarse aggregates are casted and tested for mechanical properties and light transmission. Results shows the blocks transfer light in an efficient manner without major changes in the strength aspects.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130118784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of Self-Sensing Cement Composite Using Nanomaterials for Structural Health Monitoring of Concrete Columns – A Comprehensive Review","authors":"A. Dinesh","doi":"10.21741/9781644901953-23","DOIUrl":"https://doi.org/10.21741/9781644901953-23","url":null,"abstract":"Abstract. Due to age, structural deterioration, and other factors, concrete constructions such as beams and columns will inevitably deteriorate. The growth of nanomaterials and recent advances in multidisciplinary research has broadened cement composites' applicability in various fields. A self-sensing cement composite can detect its own deformation, strain, and stress by changing its electrical characteristics, which may be measured with electrical resistivity. Carbon-based nanomaterials, such as carbon fiber, carbon black, and carbon nanotube, have a strong potential to increase cement composite's mechanical (strength) and electrical (resistivity, sensitivity) potentials due to their remarkable strength and conductivity. Due to the artificial integration of conductive carbon-based components will generate piezoresistive properties in typical cement composites, transforming them into self-sensing cement composites. As a result, the review focuses primarily on the development of nanoparticle-based self-sensing cement composites and their use in the health monitoring of structural columns. This research critically examines the materials used, fabrication techniques, strength, and sensing methodologies used to develop the self-sensing cement composite. The difficulties of commercializing self-sensing cement composites, as well as potential solutions, are also highlighted. According to the review, the difference in Poisson ratio and youngs modulus between the self-sensing cement composite and columns leads the self-sensing cement composite to have different strength and conductivity before and after embedding in columns. According to the study, the addition of conductive material diminishes the composite's workability due to its large specific surface area. Because of the well-distributed conductive network, the composite's resistivity is significantly lowered. The study also shows that the inclusion of a self-sensing cement composite has no bearing capacity influence on the column. Finally, according to the review, the self-sensing cement composite has the ability to monitor the health of structural columns.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130131126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance Study on Partial Replacement of Bitumen using Waste Polypropylene Cement Bags for Pavement Construction","authors":"R. Malathi","doi":"10.21741/9781644901953-47","DOIUrl":"https://doi.org/10.21741/9781644901953-47","url":null,"abstract":"Abstract. Flexible pavement is most commonly used in the bituminous material mix. It consists of different binders such as asphalt or bitumen and other minerals are added and compacted and used together in the lower layer of the pavement. Bituminous pavement surface property changes due to varying weather conditions. In hot climatic conditions, the bitumen becomes soft and during cold conditions it becomes too stiff and brittle in nature. In this study, the main concept is to reuse the waste materials and to promote cost-effective solution and reduce environmental pollution. In this project, waste cement bags (polypropylene) are used to replace a portion of bitumen which is used in road construction. Effect of addition of additive materials on the strength of the pavement was evaluated. Previous studies state that polypropylene emits 60ppm less pollution than bitumen while burning. The used cement waste bag when mixed with bitumen improves the behaviour and mechanical properties as per standard specification. In this experimental work, cement bags are shredded into smaller fragments and heated to 90ºC for 30 minutes in a heating mantle till the plastic pieces turned into powder form. On heating, 5 gm of powder was obtained from 20 gm of the used cement bags. This powder was added subsequently to bitumen in 5%, 7%, 9% & 11% for partial replacement of bitumen. Finally, it is inferred that the optimum percentagewas 8.2% without the addition of binders or oxidizing agents, for better efficiency.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131594005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility Study on Utilization of Compost as a Partial Replacement of Fine Aggregate in Conventional Concrete","authors":"S. Vanitha","doi":"10.21741/9781644901953-8","DOIUrl":"https://doi.org/10.21741/9781644901953-8","url":null,"abstract":"Abstract. Solid waste management is the biggest challenge due to population growth. Lack of awareness about onsite processing of solid waste implies production of huge quantity of solid waste which is unmanageable. In this study an attempt is made to utilize the degraded solid waste called compost which is collected from municipal site and is used as a filler material in concrete. Compost is replaced for fine aggregate with 5%, 10%, 15% and 20% in conventional concrete. The compressive strength results at the age of 28 days are 30.5, 19.8, 16.8 and 18.2 N/mm2 respectively. Result indicates 5% replacement of compost is effective in concrete. The concrete specimen made with compost (CVC) and conventional concrete (CC) are exposed to an elevated temperature of 200°C, 400°C, 600°C and 800°C respectively. Result indicates the conventional concrete shows 5.3%, 6.1%, 15% and 24% compressive strength loss whereas 5% compost replaced specimen shows 10%, 11 %, 23.2% and 58.2% respectively. At an elevated temperature, both conventional concrete and compost-based concrete lost its strength. The reason could be thermal incompatibility between the aggregates and concrete. However, the loss of compressive strength is almost double in CVC than CC. The possible reason could be volatile compounds may evaporate in CVC at high temperature. The weight lost is observed in CC varies from 2.4 % to 4.5 % whereas CVC shows 6% to 7% from 200°C to 800°C. Weight lost is 3% more in CVC specimen than CC specimen.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116280900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shear Behaviour of Fiber Reinforced Concrete Beams Using Steel and Polypropylene Fiber","authors":"S. Ramkumar","doi":"10.21741/9781644901953-21","DOIUrl":"https://doi.org/10.21741/9781644901953-21","url":null,"abstract":"Abstract. The experimental study provides a series of tests for characterizing the structural behavior of fibre reinforced concrete beams subjected to shear loads. The paper involves usage of 2 types of fibers - polypropylene and steel fiber. The work suggests that the shear cracking resistance of the materials used are significantly improved by the fibers. The fibers reduced the crack width to about one quarter of the width in the shear-reinforced girders. Reliance on steel fibres increases the ductility of concrete. Adding steel fibres to concrete improves its post-tensile cracking behaviour. Shear strength is increased with the increase in fiber aspect ratio and fiber volume fraction. The concrete beams are casted for the size of 150 mm x 250 mm x 2100 mm. The behavior of fiber reinforced concrete beams for the addition of 0.4 percentage of fibers in both PFRC and SFRC under loading condition were observed and the load carrying capacity was increased compared to reinforced concrete.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129858711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Moment Resisting Steel Connections for the Improvement of Light Gauge Cold Formed Steel Structures","authors":"R. Ashwathi","doi":"10.21741/9781644901953-42","DOIUrl":"https://doi.org/10.21741/9781644901953-42","url":null,"abstract":"Abstract. Steel has much importance over other construction materials in recent days because of its high strength and ductility. It has high resistance to tension when compared to concrete in compression. This paper mainly focuses to evaluate the beam column rolled and cooled formed steel connection by moment resistant connection with the help of stiffened, unstiffened and splices connections. Due to its economical development and best seismic performance by various shapes in cross sectional area and different connections it has been widely used. By clubbing these criteria, it results to study the seismic performance of cold formed steel sections area using different moment resistance connection. At long last the report result the graft association has best second opposition association, seismic safe of designs, load conveying limit is high what's more, least weight contrast and different sorts of associations. The join association load conveying limit is high, so we can diminish the size of segment and forestall the base shear because of decreasing the heaviness of the designs.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114400592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Investigation on Partial Replacement of Cement with Metakaoline, Fly Ash and Silica Fume in Concrete","authors":"C. Pradeep Kumar","doi":"10.21741/9781644901953-7","DOIUrl":"https://doi.org/10.21741/9781644901953-7","url":null,"abstract":"Abstract. The process of construction begins some thousand years ago and the monuments that we are seeing are the proof for that. The materials that are being used in the construction some thousand years ago are not the same which are being used nowadays. The construction materials get modified and new inventions are taking place due to the continuous research. The scope of this project is to make building materials sustainable and to make them eco-friendly. In the olden days lime was used as a mortar and now it’s being replaced by cement. But still research is going on to make better binding materials to make construction reliable. As an initiative, in our project we are going to partially replace cement with metakaoline, fly ash and silica fume simultaneously. We are going to replace cement with each additive in the order of 5%, 7.5%, 10%, 12.5%, and 15%. Therefore, the summation of replacement of all additives will be in the order of 15%, 22.5%, 30%, 37.5%, 45%. The concrete specimens are casted based on the replacement ratios along with the conventional concrete specimens. The specimens are subjected to the various laboratory tests and it was found that a 10% replacement of cement with additive materials to be optimum.","PeriodicalId":135346,"journal":{"name":"Sustainable Materials and Smart Practices","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126323545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}