Sandy Materials in Civil Engineering - Usage and Management最新文献

A Review on the Usage of Recycled Sand in the Construction Industry 再生砂在建筑行业中的应用综述

Sandy Materials in Civil Engineering - Usage and Management Pub Date : 2020-06-22 DOI: 10.5772/intechopen.92790

Parappallil Meeran Rawther Salim, Bellam Sivarama Krishna Prasad

{"title":"A Review on the Usage of Recycled Sand in the Construction Industry","authors":"Parappallil Meeran Rawther Salim, Bellam Sivarama Krishna Prasad","doi":"10.5772/intechopen.92790","DOIUrl":"https://doi.org/10.5772/intechopen.92790","url":null,"abstract":"The construction industry requires natural sand for many applications. The recycled sand obtained from industrial operations can also be utilized in construc tion activities. Many industries generate waste sand as a byproduct. The material generated from this discarded molds and cores is usually known as “used foundry sand,” “waste foundry sand,” or “spent foundry sand.” A vast quantity of used foundry sand is generating and heaping globally in a day-by-day manner. In this review article, an attempt is made to explore the characteristics and various utilizations of this recycled sand from the foundry industry as a valuable resource material in construction activities. From the analysis of the multiple types of research done so far on the reuse of waste foundry sand, it is found that the waste foundry sand is reusable in different civil engineering applications with added advantages. The advantageous applications of used foundry sand are ranging from the road base material to the substitute to fine aggregate in high-performance self-compacting concrete. More generally used foundry sand in the range of 10–30% is best suitable as a partial substitute to regular sand in mortar and concrete making. The use of recycled sand such as waste foundry sand in the construction industry can not only eliminate the problems of waste management and environmental impacts but also substantially boost up the sustainable developmental activities by way of reducing the consump tion of natural resources.","PeriodicalId":206498,"journal":{"name":"Sandy Materials in Civil Engineering - Usage and Management","volume":"10 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132176410","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}

引用次数: 1

Environmental Impact and Sustainability of Aggregate Production in Ethiopia 埃塞俄比亚综合生产的环境影响和可持续性

Sandy Materials in Civil Engineering - Usage and Management Pub Date : 2020-03-11 DOI: 10.5772/intechopen.90845

Gashaw Assefa, Aklilu Gebregziabher

引用次数: 5

Introduction of Marble Waste Sand in the Composition of Mortar 大理石废砂在砂浆组成中的介绍

Sandy Materials in Civil Engineering - Usage and Management Pub Date : 2020-02-20 DOI: 10.5772/intechopen.91254

Hebhoube Houria, Kherraf Leila, Abdelouahed Assia, Belachia Mouloud

引用次数: 2

Use of Waste Foundry Sand (WFS) as Filler in Hot-Mixed Asphalt Concrete 废铸造砂作为热拌沥青混凝土填料的研究

Sandy Materials in Civil Engineering - Usage and Management Pub Date : 2019-10-29 DOI: 10.5772/intechopen.89715

N. Campelo, Karine Oliveira da Costa, R. K. Vieira, A. K. Vieira

{"title":"Use of Waste Foundry Sand (WFS) as Filler in Hot-Mixed Asphalt Concrete","authors":"N. Campelo, Karine Oliveira da Costa, R. K. Vieira, A. K. Vieira","doi":"10.5772/intechopen.89715","DOIUrl":"https://doi.org/10.5772/intechopen.89715","url":null,"abstract":"The environmental issue has become a topic of relevant discussion in modern society, given the current awareness that construction inputs are finite, and a large amount of waste can be reused as a building material in engineering works. The products used in foundry industry can be non ferrous and ferrous and the residue produced by this last one is not potentially hazardous to human health. The waste foundry sand (WFS) fits this reuse and can be employed in asphalt mixtures, in partial or complete replacement of the conventional filler, i.e. Portland cement (PC). In this sense, this work analyses five asphalt mixtures, one using 100% CP (reference mixture) as filler, and the other four using WFS in proportions of 25-100%, every 25% of the total amount, in 5% (in mass) of the maximum replacement. The mixtures were physically and mechanically characterised according to the Marshall methodology and subsequently submitted to the tests of static indirect tensile strength (static ITS), resilient modulus (RM), repeated-load indirect fatigue (fatigue life) and unconfined static creep. The results of the tests showed that all mixtures with WFS residue presented physical and mechanical parameters within Brazilian standards following the Marshall methodology.","PeriodicalId":206498,"journal":{"name":"Sandy Materials in Civil Engineering - Usage and Management","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130651463","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}

引用次数: 5

Geomechanical Behavior of Bio-Cemented Sand for Foundation Works 生物胶结砂在基础工程中的地质力学行为

Sandy Materials in Civil Engineering - Usage and Management Pub Date : 2019-10-01 DOI: 10.5772/intechopen.88159

Y. Duraisamy, D. Airey

{"title":"Geomechanical Behavior of Bio-Cemented Sand for Foundation Works","authors":"Y. Duraisamy, D. Airey","doi":"10.5772/intechopen.88159","DOIUrl":"https://doi.org/10.5772/intechopen.88159","url":null,"abstract":"Bio-cementation is an innovative green technology that complements existing ground improvement techniques, but it is yet to be proven for large-scale foundation works. Previously attention has been focused on strategies to inject the bacteria and nutrients to produce the cement in the ground. This study looks at the performance of geomechanical response when the bacteria and nutrients are mixed in sand, an approach that is used in producing cemented soil columns. To explore the mechanical response of bio-cemented soil, results from unconfined compressive strength (UCS) tests and triaxial tests have been analyzed to understand the effects of bio-cementation for sand in contrast to alternative cement, gypsum. The stiffness has also been monitored using bender element techniques in triaxial cell. Both the shear wave signals during the cementation phase and the shearing phase were recorded using this technique. The results show that for a given amount of cement, higher resistances are measured for the bio-cemented samples compared to gypsum. The mixing process is shown to produce homogeneous bio-cemented samples with higher strength and stiffness than the technique of flushing or injection commonly used, provided the amount of calcite is less than 4%. The results show that the bio-cement produces similar mechanical behavior to other artificially cemented sands.","PeriodicalId":206498,"journal":{"name":"Sandy Materials in Civil Engineering - Usage and Management","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114779238","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}

引用次数: 2

The Influence of Hybrid Aggregates on Different Types of Concrete 混杂骨料对不同类型混凝土的影响

Sandy Materials in Civil Engineering - Usage and Management Pub Date : 2019-07-25 DOI: 10.5772/INTECHOPEN.88254

Jianhui Yang

{"title":"The Influence of Hybrid Aggregates on Different Types of Concrete","authors":"Jianhui Yang","doi":"10.5772/INTECHOPEN.88254","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.88254","url":null,"abstract":"This chapter presents different experimental results regarding the influences of normal-weight sand and lightweight sand (shale pottery (SP)) on different types of concrete. Because of the porosity of lightweight aggregates (LWAs), which can absorb and release water in concrete, the effect of concrete curing is better, and thus the properties of concrete are improved. On the other hand, because the lightweight coarse aggregate (LWCA) rises easily in all-lightweight concrete (ALWC) during pumping and vibration and the cost of ALWC is also higher, a method of replacing part of the lightweight aggregates in ALWC with normal-weight aggregates is used. These new types of concretes include sand lightweight concrete (SLWC), gravel lightweight concrete (GLWC), hybrid aggregate lightweight concrete (HALWC), and so on. This chapter mainly discusses the properties of lightweight aggregate concrete (LWAC), lightweight sand foamed concrete, lightweight sand mortar, and reinforced LWAC. The chapter also includes LWAC of high temperature, low temperature, durability, and uni- and multiaxial mechanical properties according to the results of our research group over recent decades. All of the experimental results show that the properties can meet Chinese National Code requirements.","PeriodicalId":206498,"journal":{"name":"Sandy Materials in Civil Engineering - Usage and Management","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115255320","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}

引用次数: 1