Our 2050 Roadmap
Waste materials and by-products from other industries can be used to replace some of the limestone, a good example of industrial symbiosis. These materials can include recycled cement paste from demolition waste, air-cooled slag and …
اقرأ أكثر
Use of a Fluoride Waste in the Raw Mix for Clinker …
product from the process of working-up aqueous fluosilicic acid solutions, in the raw mix for clinker manufacturing. The core objective is to lower the temperature of the buring process and to ...
اقرأ أكثر
Investigation on the preparation of low carbon cement materials …
Investigation on the preparation of low carbon cement materials from industrial solid waste phosphogypsum: Clinker preparation, cement properties, and hydration mechanism ... (CSA) cement can be prepared with industrial by-product phosphogypsum (PG). This paper uses PG to replace natural gypsum in preparing PG-based CSA (PGCSA) cement as a raw ...
اقرأ أكثر
Refractories and the Sustainability Challenge – Cement Optimized
Once a material is approved for use, the reclaim is transported to one of the company's plants, where it is incorporated into a finished product. It is also true that reuse and recycling come after prevention in the waste hierarchy – a point Klischat noted. "Developing products that consume less raw material avoids waste from the start.
اقرأ أكثر
Use of Construction and Demolition Wastes as Raw
Cement kiln dust, slags, fly ash, bottom ash, and other waste or industrial by products, ... 2007), 2) use in pre-cast concrete products (Dosho, 2007), and 3) use in clinker manufacturing ...
اقرأ أكثر
Use of Marble Dust as Clinker Replacement in Cements
optimize and use combination of SCM's together as clinker replacement. Nearly 960 million tonnes of solid waste is generated every year in India. The waste produced is mainly by-product of mining, agricultural, municipal, industrial and other processes [2, 3]. Due to unavailability of proper disposal method, the
اقرأ أكثر
1.6 Waste Management clinker, and fly ash.
residual waste from industrial operations, such as boiler slag, clinker, and fly ash. Hazardous wasteshares the properties of a hazardous material (e.g. ignitability, corrosivity, reactivity, or toxicity), or other physical, chemical, or biological characteristics that may pose a potential risk to human health or the environment
اقرأ أكثر
Palm Oil Clinker as a Waste by-Product: Utilization and Circular
Palm oil clinker (POC) is a solid waste by-product produced in one of the oil palm processing phases. This chapter is designed to highlight the generation, disposal problems, properties and composition of POC. ... In other to investigate the pozzolanic reactivity of POC powder by chemical pretreatment, the powder was replaced at 2.5–15.0% by ...
اقرأ أكثر
Waste-containing clinkers: Valorization of alternative mineral …
Waste streams generated from pulp and paper mills show high potential to be used as alternatives raw materials for production of clinker. In this context, this work aims to …
اقرأ أكثر
Alternative raw materials for the cement and concrete industry
In a future step, it is planned to use such produced alternative raw material in a plant trial in order to better assess the influence on the operating behaviour of the kiln and the properties of the clinker. If such use of waste incineration slags in the cement industry were possible, this would lead to a reduction in specific CO2 emissions ...
اقرأ أكثر
Alternative Fuels from Waste Products in Cement Industry
Burining sewage sludge as a fuel in cement kiln reduces the NOx emissions compared with the primary fossil fuels. On the other hand, it will increase SOx emissions and the level of mercury (Hg). To use sewage sludge in cement industry, the suggested maximum mercury content is around 0.5 mg/kg . Animal Meal
اقرأ أكثر
Palm Oil Clinker as a Waste by-Product: Utilization and Circular
(DOI: 10.5772/intechopen.97312) Conservation of natural resources to create ecological balance could be significantly improved by substituting them with waste by-products. Palm oil industry operations increases annually, thereby generating huge quantity of waste to be dumped into the landfill. Palm oil clinker (POC) is a solid waste by-product produced in one of the oil palm …
اقرأ أكثر
Ceramic wastes as alternative raw materials for Portland cement …
One such procedure is the use of alternative materials as partial replacements for fuel, raw materials or even clinker. The present study explores the reactivity and burnability of …
اقرأ أكثر
Feasibility study on the use of high volume palm oil clinker waste …
DOI: 10.1016/J.CONBUILDMAT.2016.12.098 Corpus ID: 136340048; Feasibility study on the use of high volume palm oil clinker waste in environmental friendly lightweight concrete @article{Ahmmad2017FeasibilitySO, title={Feasibility study on the use of high volume palm oil clinker waste in environmental friendly lightweight concrete}, author={R. Badlishah …
اقرأ أكثر
(PDF) The use of palm oil clinker as a sustainable construction
As a result, to produce 1 kg of palm oil crude, 4 kg of palm oil waste as dry biomass is generated [9]. Due to the accumulation of large quantities of solid wastes resulting from palm oil products, researchers focused on the use of these wastes in other industries, such as electronics, automobile, furniture, and construction industry [39].
اقرأ أكثر
Investigation on the preparation of low carbon cement materials …
Low-carbon calcium sulfoaluminate (CSA) cement can be prepared with industrial by-product phosphogypsum (PG). This paper uses PG to replace natural gypsum in preparing PG-based CSA (PGCSA) cement as a raw material and mineral admixture, and the mechanical properties and hydration mechanism of PGCSA cement are explored.The results showed that …
اقرأ أكثر
From waste to resource recycled lime sludge: Sustainable low clinker
This research focuses on recycling lime sludge as a calcium carbonate (CaCO 3) source in producing a low-clinker cementitious binder and other supplementary cementitious materials.The study comprises three main phases. In the first phase, raw lime sludge collected from the textile industry was analyzed for pH, metal content, anions, and microstructure …
اقرأ أكثر
Belite cement clinker from autoclaved aerated concrete waste – A
2.1 Low-temperature belite cement clinker for the recycling of waste fines from construction. The use of waste fines from construction as raw material for the production of cement clinker is limited by two main factors: calcium oxide and SiO 2 content. A raw meal for PCC possesses a molar ratio of CaO to SiO 2 of about three. A belite cement ...
اقرأ أكثر
Belite cement clinker from autoclaved aerated concrete waste – A
The processing of belite cement clinker in a rotary kiln at about 1000 o C is a new recycling option for autoclaved aerated concrete (AAC) waste that otherwise must be …
اقرأ أكثر
Production of Composite Cement Clinker Based on Industrial Waste
The possibility of producing cement clinker using low-energy, resource-saving technologies is studied. The composition of industrial waste for low-energy-intensive production of Portland cement ...
اقرأ أكثر
Preparation of Cement Clinker from Geopolymer-Based Wastes
In addition, environmental concerns have become a global priority in recent decades, pushing towards sustainable practices for the recovery of waste and by-products. Furthermore, the valorization of geopolymer-based material wastes can contribute to the conservation of finite, natural, non-renewable resources.
اقرأ أكثر
Ion-doped γ-C2S: Clinker characteristics, carbonation products, …
However, Zn doping is contrary to the results of other four ions and its addition has a negative effect on the properties of γ-C 2 S. All five ions (Mg, Ti, Ni, Cu, Zn) can be effectively solidified into the calcium carbonate crystals of the carbonation product, which is an important guideline for the future resource utilization of waste and ...
اقرأ أكثر
Incorporation of waste materials into portland cement clinker
In this study, portland cement clinker was synthesized using minimal limestone content and maximal waste material content, specifically fly ash and blast furnace slag. The …
اقرأ أكثر
Complete re-utilization of waste concretes
Cement kiln dust, slags, fly ash, bottom ash, and other waste or industrial by products, have been tested and proven to improve the feedstock's burnability without significantly affecting the clinker properties (Galbenis and Tsimas, 2006). The composition of RP makes it suitable as alternative feedstock for clinker production.
اقرأ أكثر
About: Clinker (waste)
Clinker is a general name given to waste from industrial processes, particularly those that involve smelting metals, welding, burning fossil fuels and use of a blacksmith's forge, which commonly causes a large buildup of clinker around the tuyere. Clinker often forms a loose, dark deposit consisting of waste materials such as coke, coal, slag, charcoal, and grit. Clinker often has a …
اقرأ أكثر
From waste materials to products for use in the cement industry
Industrial wastes (bottom ash, crushed concrete fines, filter residue, paper ash and lignite fly ash) have potential for use in building materials, for instance as raw materials for …
اقرأ أكثر
Palm Oil Clinker as a Waste by-Product: Utilization and Circular
Similar to several other adsorbents, solution initial pH portrays the most prominent influence on adsorption. Water absorption, fitness modulus and specific gravity were said to be the POC properties responsible for arsenic adsorption and process stability. ... 18 Palm Oil Clinker as a Waste by-Product: Utilization and Circular Economy ...
اقرأ أكثر
Clinker (Waste Product)
A Mixture of Compounds and Elements left over after incineration of waste, or use of Blast Furnaces and other similar processes; Typically contains carbon (Like Charcoal) intermixed …
اقرأ أكثر
An overview of alternative raw materials used in cement and clinker
The clinker phases formed in these processes are alite and belite. However, Figure 3C and D show the microstructure for clinker prepared using 55% hazardous waste obtained from the oil drilling process. The alite and belite crystals are relatively more substantial when compared with clinker prepared with non-waste clinker.
اقرأ أكثر
Sustainable Clinker and Cement Production by Using Alternative Fuels
The use of alternative fuels in both combustion and production processes is known as co-processing in cement manufacturing. Waste is now being used to substitute primary fuel sources like coal, petroleum, and gas in the combustion process. They are usually from combustible municipal waste, refuse-derived fuels, biomass, or non-hazardous industrial and commercial …
اقرأ أكثر