Cement News tagged under: aggregates
Concrete, air and aggregates19 December 2014, Published under Cement NewsThe design of a good-quality concrete mix depends on a number of factors: the right balance between cement and water used, avoiding excessive air entrapment and the use of suitable aggregate. A fresh delivery of concrete Most Portland cement production is destined to become a part of concrete, whether ready-mix, precast, sprayed or other type. A typical mix for concrete is shown in Table 1. Concrete contains three essential elements: aggregate (including coarse, fine and sand... |
Breedon: from the ground up01 December 2014, Published under Cement NewsBreedon Aggregates has established itself as a successful player in the UK building materials market over a short period of time. It is the largest independent aggregates business in the UK, with downstream operations providing a range of products for a broad customer base. Keen to build on this platform, group chief executive, Simon Vivian, explains to ICR Breedon’s priorities in terms of its aggregates and ready-mixed concrete operations, the company’s approach to sustainability and ambiti... |
Vulcan expands through acquisitions, USA07 October 2014, Published under Cement NewsVulcan Materials Company, the biggest construction aggregates producer in the US, completed six acquisitions during its third quarter to expand its aggregate operations. These consist of five aggregates facilities and concerning downstream assets in Albuquerque, Phoenix, and Santa Fe, and an aggregates operation in Delaware that serves the markets in Northern Virginia and Washington, DC. The purchases follow the acquisition of four aggregates facilities in the San Francisco Bay area and of... |
Adelaide Brighton downstream acquisitions, Australia07 August 2014, Published under Cement NewsAdelaide Brighton Ltd has acquired two integrated aggregates and readymix concrete businesses, one in South Australia and the second in Queensland, progressing its long-term vertical integration strategy of buying downstream construction materials businesses. In South Australia, in addition to the recently announced Penrice quarry acquisition, Adelaide Brighton has entered into a contract to purchase Direct Mix Concrete and Southern Quarries (DMC), the largest independent aggregates and... |
Cemex quarries win European biodiversity awards29 November 2013, Published under Cement NewsTwo Cemex quarries, Rugeley in the UK and Soto Pajares in Spain, have been recognised for their outstanding contributions to biodiversity at the European Aggregates Association (UEPG) awards in Brussels. Rugeley Quarry in Cannock Chase, West Midlands received a Recognition of Achievement for its significant restoration work and excellent habitat management activities. Soto Pajares Quarry in the Province of Madrid, Spain won the Special Award for Biodiversity for its outstanding actions rel... |
The strength of recycling23 August 2013, Published under Cement NewsOne of Latin America’s leading cement producers, Argos has been working on a pilot project for the collection, separation, classification and trituration of Construction and Demolition Waste (C&DW). The company has used recycled aggregates to partially replace conventional aggregates in concrete mixtures of different types of strength and settlement. Several lab tests were carried out to determine the effect of using recycled aggregates with results indicating that types of concretes contain... |
Lafarge sells aggregate quarries in Georgia11 January 2013, Published under Cement NewsLafarge announces it has signed binding agreements for the sale of six aggregates quarries in Georgia (USA) for a total enterprise value of US$160m. These assets represent less than one cent of the company's sales in North America in 2011. These transactions are subject to relevant approvals. "With these divestments in a region where Lafarge is present only through its aggregates operations, the group pursues its strategy of focusing on most promising geographic areas where we have int... |
Martin Marietta violated confidentiality agreement, judge rules07 May 2012, Published under Cement NewsDelaware Judge Leo Strine has ruled that Martin Marietta violated a nondisclosure agreement with Vulcan and used confidential information in forming its USD5.3bn bid and proxy fight. It has been ordered to suspend all activities related to the deal for four months. Martin Marietta said on Monday, it would appeal the ruling: “We are disappointed with the decision rendered by the Delaware Court of Chancery, with which we strongly disagree,” the company said in a statement. “After carefully co... |
Cement's best friend27 February 2012, Published under Cement NewsThe aggregates industry is closely linked to the cement industry in several aspects. Not only are cement companies commonly diversified owners of downstream operations, but some of the aggregates companies have forged a pathway into cement and are controlled by similar strict regulatory codes of practice and increasing legislation. In this article Jim O’Brien, president of the European Aggregates Association (UEPG), Belgium, looks at why aggregates can be considered cement's best friend . ... |