Manufacturing and Application of Lightweight Aggregates from Construction and Demolition Waste

被引：1

作者：

Schnell, Alexander ^{[1
]}

Ruebner, Katrin ^{[2
]}

Seher, Julia ^{[2
]}

Mueller, Constanze ^{[2
]}

Mueller, Anette ^{[3
]}

Liebezeit, Steffen ^{[3
]}

Fenner, Jacob ^{[4
]}

Martin, Falk ^{[5
]}

Pniok, Nicole ^{[6
]}

机构：

[1] Bauhaus Univ Weimar, FA Finger Inst Bldg Mat Sci, Coudray Str 11, D-99423 Weimar, Germany

[2] Bundesanstalt Materialforsch & Prufung BAM, Unter Eichen 87, D-12205 Berlin, Germany

[3] IAB Inst Angew Bauforsch Weimar gGmbH, Uber Nonnenwiese 1, D-99428 Weimar, Germany

[4] Tech Univ Clausthal, Inst Aufbereitung Recycling & Kreislaufwirtschafts, Walther Nernst Str 9, D-38678 Clausthal Zellerfeld, Germany

[5] Beton & Nat Stein Babelsberg GmbH, Walter Klausch Str 17A, D-14482 Potsdam, Germany

[6] Opus Denkmalpflege GmbH, Gartenfelder Str 29 37, D-13599 Berlin, Germany

来源：

CHEMIE INGENIEUR TECHNIK | 2024年 / 96卷 / 07期

关键词：

Construction/demolition waste; Flue gas desulfurization gypsum; Industrial by-products; Infra-lightweight concrete; Lightweight aggregates;

D O I：

10.1002/cite.202300211

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The objective of the REALight project is the development of a thermal process to produce lightweight aggregates in pilot scale and the implantation of a method to recover gypsum. Beside construction and demolition waste, various industrial by-products are studied as raw materials. The raw materials have so far been unused or used in applications with lower quality requirements. To prove the performance of the lightweight aggregates, their technical properties are tested and their use in different applications is studied, e.g., for lightweight mortars as well as lightweight concretes. The idea of producing lightweight aggregates from construction waste originated back in the 2000s. In the meantime, a process scheme has been developed in Weimar. Today, the results of a project show how these lightweight aggregates are produced on pilot scale and used in lightweight and infra-lightweight concrete as well as in repair mortars. image

引用

页码：969 / 975

页数：7

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