Leaching Characteristics of Construction Materials and Stabilization Products Containing Waste Materials

2008 ◽  
pp. 125-125-25 ◽  
Author(s):  
HA van der Sloot ◽  
GJ de Groot ◽  
J Wijkstra
Keyword(s):  
Construction Materials ◽  
Waste Materials ◽  
Leaching Characteristics

Special Rice Husk Concrete in Egypt

2011 ◽  
Vol 71-78 ◽  
pp. 3271-3274
Author(s):  
Saeed Ahme Al Sheikh
Keyword(s):  
Construction Industry ◽  
Rice Husk ◽  
Ordinary Portland Cement ◽  
Rice Husk Ash ◽  
Construction Materials ◽  
Waste Materials ◽  
Agricultural Industry ◽  
Cement Ratio ◽  
Dark Clouds ◽  
Super Plasticizer

In the late few years, Egypt has been suffering from a dark clouds resulting from burning rice husk. Studies have been undergoing to study the possibility of using rice husk instead of burning it and soiling environment. The construction industry plays an important role in many countries. Waste materials are new challenge choice for use as construction materials, because construction materials coming from a natural source are irreversible. Rice Husk Ash (RHA) is one of waste materials from agricultural industry. It has some special characteristics that can enhance the properties of concrete, when it is used as a part of the ingredients in concrete mixes. The objective of this paper is to study the mechanical properties of concrete containing ordinary Portland cement, rice husk ash and super plasticizer compared to the silica fume concrete. The water cement ratio was equal to 35% by weight for all tested specimens whereas the slump was constant at 100 +/- 20 mm.

A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

2020 ◽  
Vol 6 ◽  
pp. 42-60
Author(s):  
Abdalrhman Abrahim Milad ◽  
Ahmed Suliman B. Ali ◽  
Nur Izzi Md Yusoff
Keyword(s):  
Mechanical Performance ◽  
Permanent Deformation ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Construction Materials ◽  
Crumb Rubber ◽  
Asphalt Mixtures ◽  
Waste Material ◽  
Waste Materials ◽  
The Road

The possibility of using waste materials in road construction is of great interest as their utilisation may contribute to reducing the problems of hazard and pollution and conserve natural resources. Thus, there is an urgent need to find a sustainable method for using waste materials as a substitute in the standard asphalt binders. There are several concerns about the physical and chemical properties and mechanical performance of asphalt pavements incorporated with waste material in the effort to reduce permanent deformation of the road surface. This review article presents a brief discussion of the asphalt mixtures modified with waste material, and the recycled materials used as a modifier in the asphalt mixture. The present paper summarises the use of crumb rubber, crushed concrete, steel slag, glass fibre and plastic waste in asphalt mixtures. The use of waste materials as a modifier in asphalt mixture resulted in improved asphalt pavement performance. Results advocate that rubberised asphalt mixture with desired properties can be designed as an additive with a friendly environmental approach in construction materials. The researches that adopted the influence of usage, recycle waste material to improve the performance of the asphalt of the road are still limited compared to other construction fields. Doi: 10.28991/cej-2020-SP(EMCE)-05 Full Text: PDF

Green Materials Obtained by Geopolymerization for a Sustainable Future

2021 ◽  
Keyword(s):  
Thermal Insulation ◽  
Industrial Waste ◽  
Construction Materials ◽  
Environmentally Friendly ◽  
Toxic Waste ◽  
Waste Materials ◽  
Technological Processes ◽  
Sustainable Future ◽  
Green Materials

Geopolymerization techniques allow the conversion of industrial waste materials into environmentally friendly materials. The vast list of applications includes thermal insulation, fire-resistant materials, construction materials, refractory linings, cements and concretes, encapsulation of radioactive and toxic waste etc. The book presents the technological processes involved, as well as the characterization and applications of the resulting ecomaterials.

scholarly journals Optimum Utilization of Locally Available Waste Materials in Enhancing the Properties of Concrete

2019 ◽  
Vol 9 (2S2) ◽  
pp. 86-88
Keyword(s):  
Construction Materials ◽  
Sugar Cane Bagasse ◽  
Waste Materials ◽  
Test Results ◽  
Waste Products ◽  
Optimum Proportion ◽  
Optimum Utilization ◽  
Limited Supply ◽  
Strength And Durability ◽  
Cost Of Construction

The current challenges faced by the civil professionals are unbearable high cost of construction materials, green house effects and disposal of waste materials. All these problems are raised due to the limited supply of natural materials, more construction demand, and enormous generation of waste materials from various sources of occupations etc. The superlative solution for all the problems is to utilize the possible maximum extend of waste materials to the manufacturing of construction materials without compromising its properties. In regarding that, an attempt is made to study the possible way of utilizing the locally available waste products such as sugar cane bagasse, wild green grass and rice husk in to the concrete. All these waste products are dried and burnt into fine ashes. These ashes are added in to the concrete with various proportions such as 0%, 5%, 10%, 15%, 20%, 25% and 30% for examining the strength and durability properties of M20 grade concrete. The test results reveal that, the waste products can be effectively in to the concrete and the optimum proportion found to be around 15% to 20%.

scholarly journals CHARACTERIZATION AND DEVELOPMENT OF ECO- FRIENDLY CONCRETE USING INDUSTRIAL WASTE – A REVIEW

2014 ◽  
pp. 98-108
Author(s):  
Rajesh Kumar ◽  
Amiya K. Samanta ◽  
D. K. Singha Roy
Keyword(s):  
Solid Waste ◽  
Industrial Waste ◽  
Solid Waste Management ◽  
Construction Materials ◽  
Value Added ◽  
Industrial Wastes ◽  
Process Efficiency ◽  
Waste Materials ◽  
Co2 Production ◽  
Process Technology

At present in India, about 960 million metric tons of solid waste is being generated annually as byproducts during industrial, mining, municipal, agricultural and other processes. Advances in solid waste management resulted in alternative construction materials as a substitute to traditional materials like bricks, blocks, tiles, aggregates, ceramics, cement, lime, soil, timber and paint. To safeguard the environment, efforts are being made for recycling different wastes and to utilize them in value added applications. The cement industries have been making significant progress in reducing carbon dioxide (CO2) emissions through improvements in process technology and enhancements in process efficiency, but further improvements are limited because CO2 production is inherent to the basic process of calcinations of limestone. In the past two decades, various investigations have been conducted on industrial wastes like flyash, blast furnace slag, Silica fume, rice husks and other industrial waste materials to act as cement replacements .This paper consist of a review extensively conducted on publications related to utilization of waste materials as cement replacement with an intention to develop a process so as to produce an eco-friendly concrete having similar or higher strength and thus simultaneously providing a remedy to environmental hazards resulting from waste material disposal.

scholarly journals CHARACTERIZATION AND DEVELOPMENT OF ECO- FRIENDLY CONCRETE USING INDUSTRIAL WASTE – A REVIEW

2014 ◽  
pp. 98-108
Author(s):  
Rajesh Kumar ◽  
Amiya K. Samanta ◽  
D. K. Singha Roy
Keyword(s):  
Solid Waste ◽  
Industrial Waste ◽  
Solid Waste Management ◽  
Construction Materials ◽  
Value Added ◽  
Industrial Wastes ◽  
Process Efficiency ◽  
Waste Materials ◽  
Co2 Production ◽  
Process Technology

At present in India, about 960 million metric tons of solid waste is being generated annually as byproducts during industrial, mining, municipal, agricultural and other processes. Advances in solid waste management resulted in alternative construction materials as a substitute to traditional materials like bricks, blocks, tiles, aggregates, ceramics, cement, lime, soil, timber and paint. To safeguard the environment, efforts are being made for recycling different wastes and to utilize them in value added applications. The cement industries have been making significant progress in reducing carbon dioxide (CO2) emissions through improvements in process technology and enhancements in process efficiency, but further improvements are limited because CO2 production is inherent to the basic process of calcinations of limestone. In the past two decades, various investigations have been conducted on industrial wastes like flyash, blast furnace slag, Silica fume, rice husks and other industrial waste materials to act as cement replacements .This paper consist of a review extensively conducted on publications related to utilization of waste materials as cement replacement with an intention to develop a process so as to produce an eco-friendly concrete having similar or higher strength and thus simultaneously providing a remedy to environmental hazards resulting from waste material disposal.

scholarly journals Influence of fly ash addition on physical-mechanical properties of clay bricks – literature review

2021 ◽  
Vol 1209 (1) ◽  
pp. 012046
Author(s):  
I Vrdoljak
Keyword(s):  
Fly Ash ◽  
Literature Review ◽  
Review Paper ◽  
Construction Materials ◽  
Waste Material ◽  
Waste Materials ◽  
Clay Brick ◽  
Clay Bricks ◽  
The Past ◽  
By Products

Abstract During the past years, due to the increase in the number of people and the increasing degree of industrialization, the amount of by-products produced, the so-called waste materials are becoming larger. As this problem grows with age, attempts are being made to find answers to the questions of how to use waste material purposefully in order to reduce the problem of disposing of large quantities of this type of material. One way to reduce the accumulation of waste material is to use it in construction materials. This literature review paper presents the research of the area dealing with the influence of fly ash application on properties of clay brick. The application of fly ash at various percentages in relation to the mass of clay and the influence of fly ash at different firing temperatures are studied.

scholarly journals Development of an innovative one part green concrete

2021 ◽  
Author(s):  
Ourania Tsioulou ◽  
Andreas Lampropoulos ◽  
Kyriacos Neocleous ◽  
Nicholas Kyriakides ◽  
Thomaida Polydorou
Keyword(s):  
Carbon Dioxide Emissions ◽  
Raw Materials ◽  
Construction Materials ◽  
Waste Materials ◽  
Geopolymer Concrete ◽  
Demolition Waste ◽  
Ongoing Research ◽  
Green Concrete ◽  
Alkali Activator ◽  
Geopolymer Matrix

<p>Concrete is one of the most commonly used construction materials. However, the main drawbacks in the use of concrete are related to the use of cement and subsequently the high percentage of carbon dioxide emissions. The use of cement substitutes is an area where there is a lot of ongoing research. Geopolymer concrete is a concrete in which cement is replaced by waste materials such as Pulverised Fuel Ash (PFA), or Ground Granulated Blast furnace Slag (GGBS). To activate the geopolymerisation, an alkali activator is used. The procedure, which is used for the production of a geopolymer concrete, is normally a two-part procedure: Preparation of the alkali activator one day before the mixing and mixing of the aluminosilicate sources (PFA, GGBS) with the activator. To make the production of geopolymers more user friendly it needs to be converted to one part procedure where water will be added in a readymade mix. In the published literature, there is research on one- part geopolymers, but there are limited studies on the use of demolition waste materials as substitution of PFA and GGBS in this type of materials. With the current study, different sources of raw materials focusing on demolition waste materials such as red bricks and reclaimed concrete, which are commonly used in construction worldwide, will be examined for the production of one- part geopolymer. The major aim of this research proposal is to develop an innovative sustainable one-part cement free geopolymer concrete. The new concrete is a “green” concrete where cement is replaced by waste materials. Construction demolition materials such as red bricks can be used as raw materials in the geopolymer matrix. This project will focus on the selection, characterisation and development of the appropriate processing of these red bricks so as they can be used as raw materials in the geopolymer matrix. Also, the development of one part mix where the new concrete will be ready for use by adding only water in it, is another aim of the proposed project.</p>

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