Growth and Development of Nonmetallic Mineral Industries
Author: Oliver Bowles
Publisher:
Published: 1933
Total Pages: 56
ISBN-13:
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Author: Oliver Bowles
Publisher:
Published: 1933
Total Pages: 56
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Office of Appalachian Studies
Publisher:
Published: 1969
Total Pages: 508
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1920
Total Pages: 2194
ISBN-13:
DOWNLOAD EBOOKBeginning in 1956 each vol. includes as a regular number the Blue book of southern progress and the Southern industrial directory, formerly issued separately.
Author: United States. Office of Appalachian Studies
Publisher:
Published: 1969
Total Pages: 668
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Congress. House. Committee on Ways and Means
Publisher:
Published: 1929
Total Pages: 1794
ISBN-13:
DOWNLOAD EBOOKAuthor: Ken Skorseth
Publisher:
Published: 2000
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKThe purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Author: National Stone, Sand & Gravel Association
Publisher:
Published: 2013-03-20
Total Pages:
ISBN-13: 9780988995000
DOWNLOAD EBOOKAuthor: Programme des Nations Unies pour l'environnement. GRID-Geneva
Publisher:
Published: 2019
Total Pages: 35
ISBN-13: 9789280737516
DOWNLOAD EBOOKSand and gravels are the unrecognised foundational material of our economies. They are mined the world over, with aggregates accounting for the largest volume of solid material extracted globally (Peduzzi, 2014; Beiser, 2018). At the same time, these materials cannot be produced from our terrestrial, riverine and marine environments in quantities needed to meet demand from a world of 10 billion people without effective policy, planning, regulation and management. Such actions remain largely unaddressed by decision makers in public or private sectors. It is time to challenge the paradigm of infinite sand resources through constructive dialogue and solution-finding. This report aims to be the starting point from which a productive global conversation on sand extraction can begin. This synthesis was produced following a United Nations Environment Programme expert roundtable event held on 11 October 2018 in Geneva, Switzerland. The discussions emphasised potential solutions for mitigating mineral sands and aggregates extraction impacts and generating adequate support for responsible consumption pathways. Expert views were collated and complemented with additional research and consultation to distil key messages on an agenda for tackling this issue in 2019 and beyond.
Author: Kiran Pereira
Publisher:
Published: 2020-12-08
Total Pages: 352
ISBN-13: 9781838125202
DOWNLOAD EBOOKIn Sand Stories, Kiran Pereira examines why sand is the most consumed commodity on the planet after water and the impacts of this seemingly insatiable demand for sand. The book offers a wealth of potential solutions and is richly illustrated.
Author: United States. Congress. House. Committee on Ways and Means
Publisher:
Published: 1929
Total Pages: 1796
ISBN-13:
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