Cement News tagged under: Alternative raw materials

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Georgia Power announces coal ash reuse project

01 April 2020, Published under Cement News

USA-based Georgia Power today announced a new beneficial reuse project for coal ash stored at Plant Mitchell, a retired coal-fired power station near Albany. Starting this year, approximately 2Mt of stored coal ash will be removed from the existing ash ponds for reuse in Portland cement manufacture. "As part of our ash pond closure efforts, Georgia Power is always looking for opportunities to reuse coal ash that are beneficial for our customers and communities," said Dr Mark Berry, vice p...

San Miguel Corp makes roads from plastic waste

24 January 2020, Published under Cement News

San Miguel Corp and Aboitz Equity Ventures Inc are using old plastic shopping bags, sachet wrappers and plastic packaging in their asphalt road mix to meet the Philippines' need for its US$157bn ‘Build, Build, Build’ infrastructure programme. The companies' new road surface material was developed with Dow Chemical and was first laid in November 2019, when 900kg of plastic was incorporated to pave a 1500m 2 test site near Manila.
 Aboitiz's Republic Cement & Building Materials Inc also use...

Votorantim creates new unit to assist alternative material co-processing

17 September 2019, Published under Cement News

Brazil’s Votorantim Cimentos has created a new business unit, named Verdera, to manage and provide services throughout the co-processing chain of alternative materials used in cement production. The company announced an investment plan of BRL400m (US$98m) to develop the unit over the next four years. The goal of Verdera is to offer waste disposal services to different companies and industries. Furthermore, the company plans to increase its petcoke substitution rate from 25 per cent to 80...

Construction and demolition waste as clinker raw material

09 September 2019, Published under Cement News

The concept of the circular economy encourages the reuse of waste products as raw materials in the production of cement. Arthur Harrisson looks at the use of construction and demolition waste as a raw material for clinker. Initial crushing of concrete produces aggregate containing a significant proportion of mortar Carbon dioxide is produced during cement clinker manufacture from two sources. Firstly, the primary raw material for clinker is limestone, which is predominantly calc...

Plugging the plastic leakage

11 June 2019, Published under Cement News

The issue of post-consumer plastic leaking into the ocean with devastating consequences on marine life has existed for some time but only recently the rallying call to solve this issue appears to have been firmly heard. As it mines this waste to produce a suitable alternative fuel to fire its kilns, the cement industry could prove to be a key ally. By Dr Vincent Aloysius, INSEE Ecocycle Co Ltd, Thailand. There are up to 12.8Mt of post-consumer plastics polluting the world's oceans ...

Cinvestav produce cement using volcanic ash

06 June 2019, Published under Cement News

Scientists at Mexico’s Centre for Research and Advanced Studies (Cinvestav) are using volcanic ash to make environmentally-friendly cement. First tests have shown that cement formulations that work contain up to 80 per cent of volcanic material, without the need for high-temperature kilns. Cinvestav reported that the group has developed some 15 alternatives in the past four year and have applied for a national patent.

Cement companies purchased 0.3Mt of fly ash from Endesa power station

02 April 2019, Published under Cement News

UK and North American cement companies as well as the nearby LafargeHolcim plant have bought some 0.3Mt of fly ash from the Endesa power station in Carboneras, Spain, in 2018. The fly ash is shipped to overseas customers from the port of Endesa Pucarsa. In addition, Endesa has also sold 30,000t of slag and 60,000t of gypsum from its lime plant.

Holcim Süddeutschland plans glass waste use as ARM

10 December 2018, Published under Cement News

Holcim Süddeutschland plans to use glass waste as alternative raw material in the production of cement at its cement plant in Dotternhausen, Germany. The cement producer has submitted an application to the local Tübingen for the storage of 625t of glass at the facility. The space will be created in the warehouse that currently stores roofing boards. The glass waste, which will come from a waste glass processing plant in Bad Wurzach, will be used to substitute clay and will be used at a m...

Arkan Building Materials to co-process SPL

13 November 2018, Published under Cement News

Emirates Global Aluminium (EGA) will supply Abu Dhabi-based Arkan Building Materials with waste from its smelting operations. Arkan will co-process EGA’s spent pot lining (SPL) material in its kilns. EGA is building facilities at its Al Taweelah site to process SPL into an alternative raw material or fuel that can be used in cement plants. HE Eng Jamal Salem Al Dhaheri, chairman of Arkan, said the company would be able to reduce its dependence on fuel by using EGA's wasted spent pot lini...

Chilean research team doubles cement performance

15 August 2018, Published under Cement News

A group of researchers of the Department of Engineering and Construction Management at the Universidad Católica (UC) has reported doubled the performance of cement materials through an innovative use of solid waste extracted from copper mining tailings. The findings are a step towards the reduction of the environmental impact of cement production as well as the waste from copper mining activity. The team analysed the technical feasibility of creating these materials through innovative use ...