Research on Porous Ceramics Synthesized by Industrial Waste Residues

2014 ◽  
Vol 675-677 ◽  
pp. 756-760
Author(s):  
Ting Zhou Li ◽  
Xiao Qin Zhu ◽  
Xin Tao Zhou ◽  
Jing Hua Chang ◽  
Li Meng Chen ◽  
...  
Keyword(s):  
Fly Ash ◽  
Research And Development ◽  
Red Mud ◽  
Industrial Waste ◽  
Raw Materials ◽  
Porous Ceramics ◽  
Research Field ◽  
Preparation Technique ◽  
Important Research ◽  
The World

The accumulation of industrial waste residues is a serious problem with the continuous development of industrial productions during the recent years, how to use reasonably the industrial waste residues has gradually turned into an important research field in the world. Therefore, the research and development of porous ceramics synthesized by the industrial waste residues of fly ash, coal gangue and red mud etc as the raw materials were introduced, the present preparation technique and characteristics of the porous ceramics synthesized by the industrial waste residues were analyzed, and its further investigation was discussed.

Study on Preparation of Ceramic Material and its Properties

2014 ◽  
Vol 686 ◽  
pp. 57-60
Author(s):  
Ya Li Liu
Keyword(s):  
Fly Ash ◽  
Red Mud ◽  
Bending Strength ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Porous Ceramic ◽  
High Strength ◽  
Porous Ceramics ◽  
Raw Material ◽  
High Porosity

This paper introduces the classification, properties and application of porous ceramic materials, reviewed preparation of porous ceramics. Taking fly ash and red mud as the main raw material to generate porous ceramics, the paper study the influence of different proportions of raw materials, sintering temperature, porosity of porous ceramic sample rate, bending strength, and microstructure. The results show that, fly ash and red mud proportioning and sintering temperature are the main factors that influence the structure and properties of samples. The 4# sample is a kind of high porosity and high strength quality of porous ceramics.

Leaching Behavior and Immobilization of Heavy Metals in Geopolymer Synthesized from Red Mud and Fly Ash

2018 ◽  
Vol 777 ◽  
pp. 518-522 ◽  
Author(s):  
Hoc Thang Nguyen ◽  
Thu Ha Bui ◽  
Vo Thi Ha Quyen Pham ◽  
Minch Quang Do ◽  
Minh Duc Hoang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fly Ash ◽  
Red Mud ◽  
Industrial Waste ◽  
Power Plants ◽  
Building Materials ◽  
Negative Impact ◽  
Raw Materials ◽  
Thermal Power ◽  
Aluminum Production

Fly ash is an industrial waste from coal-fired thermal power plants whereas red mud is an industrial waste generated during aluminum production from bauxite. If both fly ash and red mud are not properly managed, they could cause negative impact on the environment. This study utilized red mud and fly ash in combination with sodium silicate solution to produce a geopolymer-based material which can be used as building materials. This study focussed on the leachability of heavy metals in the raw materials and the geopolymer as this would be significant in assessing the environmental impact of the product. Leachability of heavy metals such as Cu, Zn, Cd, Pb, Fe, and Cr was evaluated based on European standard (EN 124572 – 2, EU CEN TC292/ CEN TC 308) with pH values at 7. The results showed that raw materials (red mud and fly ash) have higher leachability than geopolymer specimens. And the values of leaching tests for heavy metals in the geopolymer - based materials belonged to limits of EULFD and USEPA.

scholarly journals Utilization of Red Mud-Fly Ash Reinforced with Cement in Road Construction Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Sarath Chandra K ◽  
Krishnaiah S ◽  
Kibebe Sahile
Keyword(s):  
Fly Ash ◽  
Red Mud ◽  
Industrial Waste ◽  
Construction Material ◽  
Road Construction ◽  
Dry Weight ◽  
Strength Properties ◽  
Environmental Threat ◽  
The Right ◽  
The Impact

Industrialization is the key to the growth of any country’s economy. However, on the other hand, the production of industrial waste is increasing enormously, which adversely impacts the environment and natural resources. Red mud is also a widespread industrial waste produced during aluminium extraction from bauxite ore in Bayer’s process. Red mud is a highly alkaline material that creates a massive environmental threat in nature. To reduce the impact of this solid waste material, the ideal method is to use it in construction works with appropriate stabilization. This study envisages the strength properties of red mud with fly ash and cement to use it as a road construction material in the subgrade. The influence of fly ash and cement on improving the strength properties of red mud was studied in detail by replacing red mud with 10%, 20%, and 30% with fly ash and 1%, 3%, and 5% of cement to its dry weight. The CBR (California bearing ratio) value was increased from 1.58% to 11.6% by stabilizing red mud with fly ash and cement, which can be used as a road construction material. The UCS (unconfined compressive strength) of red mud was increased from 825 kPa to 2340 kPa upon curing for 28 days with the right mix of fly ash and cement. Along with the strength properties, the chemical analysis of leachate for the best suitable mix was performed according to the TCLP method to understand the hazardous materials present in the red mud when it is injected as ground material. Both strength properties and the leachate characteristics prove that the red mud with suitable fly ash and cement is an excellent material in road constructions.

A critical review on tribological properties, thermal behavior, and different applications of industrial waste reinforcement for composites

2020 ◽  
pp. 146442072097243 ◽  
Author(s):  
Swati Gangwar ◽  
Vimal Kumar Pathak
Keyword(s):  
Fly Ash ◽  
Red Mud ◽  
Industrial Waste ◽  
Hybrid Composites ◽  
Industrial Wastes ◽  
Reinforced Composites ◽  
Manufacturing Costs ◽  
Comprehensive Review ◽  
Marble Dust ◽  
Future Potential

Industrial wastes such as marble dust, fly ash, and red mud have progressed as an environmental hazard that needs to be disposed or utilized for minimizing the ecological pollution problems and manufacturing costs. Over the years, there is an increasing interest among researchers in utilizing these industrial wastes as reinforcement for developing economic and lightweight monolithic or hybrid composites. In the same context, this paper presents a comprehensive review on the aspects of tribology and thermal performance of industrial waste such as marble dust, fly ash, and red mud as reinforcement for different monolithic and hybrid composites. The review also describes different applications for industrial waste material reinforced composites. Finally, the paper concludes with authors’ perspective of the review, conclusion summary, and future potential of industrial waste filled composites in different industries for obtaining a sustainable and cleaner environment.

Development of Fly Ash-Based Geopolymer Lightweight Bricks Using Foaming Agent - A Review

2015 ◽  
Vol 660 ◽  
pp. 9-16 ◽  
Author(s):  
Wan Mastura Wan Ibrahim ◽  
Kamarudin Hussin ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Aeslina Abdul Kadir ◽  
Mohammed Binhussain
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Building Material ◽  
Raw Materials ◽  
Construction Materials ◽  
Physical And Mechanical Properties ◽  
Foaming Agent ◽  
Positive Effects ◽  
The World ◽  
Great Development

Bricks are widely used as a construction and building material due to its properties. Recent years have seen a great development in new types of inorganic cementitious binders called ‘‘geopolymeric cement’’ around the world. This prompted its use in bricks, which improves the greenness of ordinary bricks. The development of fly ash-based geopolymer lightweight bricks is relatively new in the field of construction materials. This paper reviews the uses of fly ash as a raw materials and addition of foaming agent to the geopolymeric mixture to produce lightweight bricks. The effects on their physical and mechanical properties have been discussed. Most manufactured bricks with incorporation of foaming agent have shown positive effects by producing lightweight bricks, increased porosity and improved the thermal conductivities of fly ash-based geopolymer bricks. However, less of performances in number of cases in terms of mechanical properties were also demonstrated.

Geopolymer Sourced with Fly Ash and Industrial Aluminum Waste for Sustainable Materials

2020 ◽  
pp. 676-696
Author(s):  
Sujitra Onutai ◽  
Sirithan Jiemsirilers ◽  
Takaomi Kobayashi
Keyword(s):  
Fly Ash ◽  
Industrial Waste ◽  
Raw Materials ◽  
Acid Resistance ◽  
High Strength ◽  
Microwave Oven ◽  
Silicate Material ◽  
High Acid ◽  
Alumino Silicate ◽  
Geopolymer Cement

Geopolymer is alumino-silicate material which can apply for many applications due to that geopolymers have several attractive properties of high strength, low permeability, high acid resistance, hazardous materials, and immobilization of toxic materials. This chapter presents synthesis of the dense and the porous structures of geopolymer by using fly ash and industrial waste as the raw materials. Aluminum hydroxide waste (Al-waste) and fly ash (FA) were used to synthesis the dense geopolymers for cement materials. The Al-waste based geopolymer influenced the geopolymer strength, when sodium hydroxide (NaOH) concentration was changed at different curing temperatures. As preliminary microwave oven was exposed in the lower NaOH paste of geopolymer, the successful synthesis of geopolymer cement was obtained. In addition, porous fly ash geopolymers was achieved using a household microwave oven. The geopolymer paste was cured within 1 min by using a microwave oven at different output power. Porous geopolymers were formed immediately as ued at 850 W power of the microwave oven.

Study on Light Porous Unsintered Building Material

2012 ◽  
Vol 532-533 ◽  
pp. 144-148
Author(s):  
Cong Cong Jiang ◽  
Gou Zhong Li ◽  
Qi Jin Li
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Red Mud ◽  
Building Material ◽  
Building Materials ◽  
Thermal Conductivity Coefficient ◽  
Raw Materials ◽  
Ambient Conditions ◽  
Optimum Ratio ◽  
Broad Application

A light porous unsintered building material was prepared with red mud, fly ash, silica fume as the main raw materials, mixed with a certain amount of foam and curing agent, by the technology of casting and curing at ambient conditions. The influence of different ratio of red mud to fly ash on compressive strength was studied. The microstructure properties of light porous unsintered building material were characterized by scanning electron microscopy (SEM) and then the strength mechanism was studied. The results showed that the optimum ratio of red mud to fly ash was 2:1, and for the best sample, its bulk density was 891kg•m-3, 7d and 28d compressive strength were 8.4MPa and 14.7MPa, thermal conductivity coefficient was 0.235W•(m•K)-1, which may have a broad application prospect in the building materials field.

Ceramic Brick with High Water Retentivity Prepared from Ceramic Waste and by Products

2006 ◽  
Vol 45 ◽  
pp. 2235-2239
Author(s):  
Toyohiko Sugiyama ◽  
Hajime Nagae ◽  
Kazuo Suzuki ◽  
Kenichi Nakano
Keyword(s):  
Water Absorption ◽  
Industrial Waste ◽  
Bending Strength ◽  
Raw Materials ◽  
Ceramic Materials ◽  
High Water ◽  
Porous Ceramics ◽  
Waste Materials ◽  
Ceramic Brick ◽  
Heat Of Evaporation

Many kinds of industrial waste were examined as potential constituents of ceramic bricks or tiles. The basic physical properties of these materials were measured, such as sintering temperature, water absorption, porosity, density, color, chemical stability and bending strength. Several kinds of sintered ceramics containing large amounts of waste materials were obtained by adjusting the amount of the waste materials added to the ceramics. These were fired at temperatures lower than 1000°C. A lowering of firing temperature results in a reduction of discharge of CO2 on the production process. Ceramic brick with high water retention is expected to mitigate the heatisland phenomenon by the latent heat of evaporation. Porous ceramics were prepared using industrial waste, burned ash and recycled roofing tile as raw materials. The permeability, water retentivity, water absorption, and other properties of the porous recycled ceramics were investigated. The pF value of the ceramics was measured as an indicator of water retentivity. An appropriate method of characterizing water retentive ceramic materials was also discussed based on results of fundamental examination of the ceramics under practical conditions.

Sign in / Sign up

Export Citation Format

Share Document