scholarly journals Preparation of artificial aggregate using waste concrete powder and CO2 fixed by microorganisms

2022 ◽  
Author(s):  
Xiao Zhang ◽  
Chunxiang Qian ◽  
Dengmin Xie
Keyword(s):  
Waste Concrete

scholarly journals Modeling materials flow of waste concrete from construction and demolition wastes in Taiwan

2002 ◽  
Vol 28 (1-2) ◽  
pp. 39-47 ◽  
Author(s):  
T.Y. Hsiao ◽  
Y.T. Huang ◽  
Y.H. Yu ◽  
I.K. Wernick
Keyword(s):  
Waste Concrete ◽  
Construction And Demolition Wastes ◽  
Materials Flow

Experimental study on recycled cement prepared from waste concrete

2021 ◽  
Vol 570 (1) ◽  
pp. 218-227
Author(s):  
Yu Haiyan ◽  
Ren Zhixiao ◽  
Qiu Cuina ◽  
Hu Lintong
Keyword(s):  
Experimental Study ◽  
Waste Concrete

scholarly journals Environmental justice, settler colonialism, and more-than-humans in the occupied West Bank: An introduction

2021 ◽  
Vol 4 (1) ◽  
pp. 3-27
Author(s):  
Irus Braverman
Keyword(s):  
United States ◽  
Environmental Justice ◽  
West Bank ◽  
Settler Colonialism ◽  
The United States ◽  
Special Issue ◽  
The West ◽  
The Core ◽  
Waste Concrete

Our special issue provides a first-of-its kind attempt to examine environmental injustices in the occupied West Bank through interdisciplinary perspectives, pointing to the broader settler colonial and neoliberal contexts within which they occur and to their more-than-human implications. Specifically, we seek to understand what environmental justice—a movement originating from, and rooted in, the United States—means in the context of Palestine/Israel. Moving beyond the settler-native dialectic, we draw attention to the more-than-human flows that occur in the region—which include water, air, waste, cement, trees, donkeys, watermelons, and insects—to consider the dynamic, and often gradational, meanings of frontier, enclosure, and Indigeneity in the West Bank, challenging the all-too-binary assumptions at the core of settler colonialism. Against the backdrop of the settler colonial project of territorial dispossession and elimination, we illuminate the infrastructural connections and disruptions among lives and matter in the West Bank, interpreting these through the lens of environmental justice. We finally ask what forms of ecological decolonization might emerge from this landscape of accumulating waste, concrete, and ruin. Such alternative visions that move beyond the single axis of settler-native enable the emergence of more nuanced, and even hopeful, ecological imaginaries that focus on sumud, dignity, and recognition.

Research Status and Prospect of Recycling of Waste Concrete for Sustainable Development

2013 ◽  
Vol 791-793 ◽  
pp. 335-337
Author(s):  
Chao You ◽  
Guan Jun Liang ◽  
Yong Xiang Zhu
Keyword(s):  
Sustainable Development ◽  
Development Strategy ◽  
Engineering Application ◽  
Modern Society ◽  
Recycled Concrete ◽  
Research Status ◽  
Existing Problems ◽  
Waste Concrete ◽  
Drying Up ◽  
Concrete Recycling

In modern society, the development of urbanization process makes the increasing waste concrete and natural aggregate resource increasingly drying up. Recycled concrete research has become the inevitable development of society. This paper briefly introduces the research status of waste concrete recycling, and points out the current waste engineering application research status and existing problems of the concrete utilization. The industrialization of recycled concrete is in accordance with the needs of environmental protection and sustainable development strategy.

Recycling of Waste Concrete and Fly Ash for Recycled Aggregate Concrete: Fundamental Characteristics Evaluation

2009 ◽  
Vol 620-622 ◽  
pp. 255-258 ◽  
Author(s):  
Cheol Woo Park
Keyword(s):  
Fly Ash ◽  
Recycled Concrete ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Experimental Program ◽  
Concrete Aggregate ◽  
Fine Aggregate ◽  
Recycled Concrete Aggregate ◽  
Aggregate Concrete ◽  
Waste Concrete

As the amount of waste concrete has been increased and recycling technique advances, this study investigates the applicability of recycled concrete aggregate for concrete structures. In addition fly ash, the industrial by-product, was considered in the concrete mix. Experimental program performed compressive strength and chloride penetration resistance tests with various replacement levels of fine recycled concrete aggregate and fly ash. In most case, the design strength, 40MPa, was obtained. It was known that the replacement of the fine aggregate with fine RCA may have greater influence on the strength development rather than the addition of fly ash. It is recommended that when complete coarse aggregate is replaced with RCA the fine RCA replacement should be less than 60%. The recycled aggregate concrete can achieve sufficient resistance to the chloride ion penetration and the resistance can be more effectively controlled by adding fly ash. It I finally conclude that the recycled concrete aggregate can be successfully used in the construction field and the recycling rate of waste concrete and flay ash should be increased without causing significant engineering problems.

scholarly journals Recovery of Calcium from Waste Concrete and Fixation of Carbon Dioxide Gas by Carbonation Reaction

1998 ◽  
Vol 106 (1235) ◽  
pp. 719-723 ◽  
Author(s):  
Kanichi KAMIYA ◽  
Mamoru TOHMOTO ◽  
Makoto YADA ◽  
Hiroyuki NASU
Keyword(s):  
Carbon Dioxide ◽  
Carbonation Reaction ◽  
Carbon Dioxide Gas ◽  
Waste Concrete ◽  
Fixation Of Carbon Dioxide

Characteristics of Wear Layered Laston Mix Using Waste Concrete Aggregate

2021 ◽  
Vol 3 (3) ◽  
pp. 459-468
Author(s):  
Yanti ◽  
Rais Rachman ◽  
Alpius
Keyword(s):  
Coarse Aggregate ◽  
Mixture Design ◽  
Concrete Aggregate ◽  
Fine Aggregate ◽  
Waste Concrete ◽  
Characteristic Value ◽  
Marshall Test ◽  
Pavement Material

The research objective focuses on testing the characteristics of the Laston Lapis Aus mixture, the aggregate taken later to be studied is the aggregate of Concrete Waste. The method used in this study included testing the properties of coarse aggregate, fine aggregate and filler, after that the Laston Lapis Aus mixture design was carried out after that the marshall test was carried out while the marshalltest was carried out namely the conventional marshall to get the characteristic value. The results showed that the characteristics of the pavement material in the form of aggregates from Concrete Waste tested the 2018 Bina Marga General Specifications as road layers. Through Marshall testing, the characteristics of the Laston Lapis Aus mixture were abtained with asphalt levels of 5,50%, 6,00%, 6,50%, 7,00%, and 7,50%.

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