rehydration reactivity of recycled mortar from concrete

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Rehydration reactivity of recycled mortar from concrete ...

Aug 01, 2008  One is the coarse recycled concrete aggregates (CRCA), part of which can be used in new concrete or road base materials. The other is the fine recycled concrete aggregates (FRCA) or recycled mortar from crushed concrete waste whose sizes are smaller than 5 mm. Recycling, evaluation and application of both parts are discussed in different ...

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Rehydration reactivity of recycled mortar from concrete ...

The coarse recycled concrete aggregates (CRCA) from crushed concrete waste have been successfully applied in new concrete and road base. However, the use of fine recycled concrete aggregates (FRCA) is generally limited due to its detrimental effects on the mechanical property and durability of concrete.

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Rehydration reactivity of recycled mortar from concrete ...

Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. It is desirable to completely recycle concrete waste in order to protect the natural resources and reduce the environment pollution.

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Rehydration reactivity of recycled mortar from concrete ...

Request PDF Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment It is desirable to completely recycle concrete waste in order to protect the natural ...

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Evaluation of Recementation Reactivity of Recycled ...

The use of recycled concrete aggregate (RCA) as a drainage material in exfiltration trenches and base and subbase layers is becoming increasingly common. ... Shui, Z. , Xuan, D. , Wan, H. , and Cao, B. Rehydration Reactivity of Recycled Mortar from Concrete Waste Experienced to Thermal Treatment. Construction and Building Materials, Vol. 22, No ...

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(PDF) RECYCLING AND ITS USE IN CONCRETE WASTE

Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. ... we focus on mechanical properties of cement pastes containing recycled concrete powder. We used ...

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Combined effects of recycled hydrated cement and recycled ...

Feb 01, 2017  2.1. Natural and recycled aggregates. Natural and recycled aggregates were used to prepare the concrete mixtures. The RA were obtained from a low quality concrete form the slab of a demolished residential building and their nominal sizes were 19.3 mm, 12.5 mm and 9.5 mm.To reduce the amount of adhered mortar, the aggregates were put through a 300 rev abrasion process using a

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The Properties of Composites with Recycled Cement Mortar ...

The process of recycling concrete rubble is accompanied by the formation of a large amount of fine fraction, which cannot be reused as aggregate. The results of research on the possibility of using recycled cement mortar (RCM), obtained during concrete recycling, as a cementitious supplementary material, are presented.

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Evaluation of Recementation Reactivity of Recycled ...

The use of recycled concrete aggregate (RCA) as a drainage material in exfiltration trenches and base and subbase layers is becoming increasingly common. ... Shui, Z. , Xuan, D. , Wan, H. , and Cao, B. Rehydration Reactivity of Recycled Mortar from Concrete Waste Experienced to Thermal Treatment. Construction and Building Materials, Vol. 22, No ...

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The Properties of Composites with Recycled Cement

Dec 21, 2019  the microstructure of RCM and also to explain its rehydration reactivity. The conducted research partially resulted in issuance of a patent (PAT 229887 [27]). 2. Technology of Recycled Cement Mortar (RCM) Production 2.1. The Initial Concrete Rubble The recycled cement mortar (RCM) was obtained from 2-year-old laboratory cube specimens

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Rehydration activity of hydrated cement paste exposed to ...

Some researchers [19, 20] studied the rehydration reactivity of fine fraction from recycled concrete after its heating at different temperatures. The results confirm that cement paste heated at a ...

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Study of rehydration of Portland blast-furnace slag cement ...

Zhonghe Shui, Dongxing Xuan, Huiwen Wan, Beibei Cao. Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. Construction and Building Materials. 22 (2008) 1723-1729. Kai Gu, Fei Jin, Abir Al-Tabbaa, Bin Shi. Activation of ground granulated blast furnace slag by using calcined Dolomite.

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Evaluation of pre-coated recycled aggregate for concrete ...

Jun 01, 2013  Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment Constr Build Mater , 22 ( 8 ) ( 2008 ) , pp. 1723 - 1729 Article Download PDF View Record in Scopus Google Scholar

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Recycled cement - ScienceDirect

Nov 30, 2018  The compressive strengths of the 6 recycled cement pastes at 1, 7 and 28 days are shown in Fig. 8. Table 1 gives the detailed information of the 6 recycled cements. It can be seen that #2, #5 and #6 have the highest strength in all recycled cements. All of

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Recycling Concrete-An Overview of Challenges and Opportunities

Mar 01, 2004  The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete

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Utilization of Demolished Waste as Coarse Aggregate in ...

The objective of this study is to investigate the possibility of using old recycled concrete as coarse aggregate to make new concrete mixes, and its effect on the evolution of the compressive strength of the new concrete mixes. ... “Rehydration Reactivity of Recycled Mortar from Concrete Waste Experienced to Thermal Treatment.” Construction ...

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Flexural and Compressive Strength of the Cement Paste with ...

[5] Z. Shui et al., Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. Construction and Building Materials 22 (2008) 1723-1729. DOI: 10.1016/j.conbuildmat.2007.05.012

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Cement treated recycled demolition waste as a road base ...

Aug 19, 2010  Rehydration Reactivity of Recycled Mortar from Concrete Waste Experienced to Thermal Treatment[J]. Construction Building Materials, 2008, 22:1723–1729. Article Google Scholar [5] Ravindrarajah RS, Tam CT. Recycled Concrete as Fine and Coarse Aggregate in Concrete[J]. Magazine of Concrete Research, 1987, 39:214–220

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The Properties of Composites with Recycled Cement Mortar ...

The process of recycling concrete rubble is accompanied by the formation of a large amount of fine fraction, which cannot be reused as aggregate. The results of research on the possibility of using recycled cement mortar (RCM), obtained during concrete recycling, as a cementitious supplementary material, are presented.

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Reactivated cementitious materials from hydrated cement ...

Abstract Hydrated cement pastes subjected to high temperature dehydration have been shown to develop a cementitious behavior upon rehydration that could enable recycling of hydrated cement wastes as alternative binders of high environmental value. In order to evaluate the potential of this recycling option it is first necessary to identify material and process factors affecting the performance ...

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Properties of Mortar with Recycled-Cement Scientific.Net

Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. Construction and building materials. 22 (2008) 1723-1729. DOI: 10.1016/j.conbuildmat.2007.05.012

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‪Dongxing XUAN‬ - ‪Google Scholar‬

Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment Z Shui, D Xuan, H Wan, B Cao Construction and Building materials 22 (8), 1723-1729 , 2008

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Study of rehydration of Portland blast-furnace slag cement ...

Zhonghe Shui, Dongxing Xuan, Huiwen Wan, Beibei Cao. Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. Construction and Building Materials. 22 (2008) 1723-1729. Kai Gu, Fei Jin, Abir Al-Tabbaa, Bin Shi. Activation of ground granulated blast furnace slag by using calcined Dolomite.

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Cement treated recycled demolition waste as a road base ...

Aug 19, 2010  Rehydration Reactivity of Recycled Mortar from Concrete Waste Experienced to Thermal Treatment[J]. Construction Building Materials, 2008, 22:1723–1729. Article Google Scholar [5] Ravindrarajah RS, Tam CT. Recycled Concrete as Fine and Coarse Aggregate in Concrete[J]. Magazine of Concrete Research, 1987, 39:214–220

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Flexural and Compressive Strength of the Cement Paste with ...

[5] Z. Shui et al., Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. Construction and Building Materials 22 (2008) 1723-1729. DOI: 10.1016/j.conbuildmat.2007.05.012

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Study of Fine Mortar Powder from Different Waste Sources ...

Mar 18, 2017  Shui Z, Xuan D, Wan H, Cao B (2008) Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment. Constr Build Mater 22(8):1723–1729 CrossRef Google Scholar Shui Z, Xuan D, Chen W, Yu R, Zhang R (2009) Cementitious characteristics of hydrated cement paste subjected to various dehydration temperatures.

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The Effects of Different Fine Recycled Concrete Aggregates ...

The practical use of recycled concrete aggregate produced by crushing concrete waste reduces the consumption of natural aggregate and the amount of concrete waste that ends up in landfills. This study investigated two methods used in the production of fine recycled concrete aggregate: (1) a method that produces fine as well as coarse aggregate, and (2) a method that produces only fine aggregate.

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Influence of increasing amount of recycled concrete powder ...

Sep 14, 2017  This paper deals with using fine recycled concrete powder in cement composites as micro-filler and partial cement replacement. Binder properties of recycled concrete powder are given by exposed non-hydrated cement grains, which can hydrate again and in small amount replace cement or improve some mechanical properties.

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The Properties of Composites with Recycled Cement Mortar ...

The process of recycling concrete rubble is accompanied by the formation of a large amount of fine fraction, which cannot be reused as aggregate. The results of research on the possibility of using recycled cement mortar (RCM), obtained during concrete recycling, as a cementitious supplementary material, are presented. The experimental research was carried out on the basis of two variables ...

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Utilization of Demolished Waste as Coarse Aggregate in ...

The objective of this study is to investigate the possibility of using old recycled concrete as coarse aggregate to make new concrete mixes, and its effect on the evolution of the compressive strength of the new concrete mixes. ... “Rehydration Reactivity of Recycled Mortar from Concrete Waste Experienced to Thermal Treatment.” Construction ...

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An investigation on the recycling of hydrated cement from ...

Abstract Construction and demolition waste (CDW) recycling is generally limited to the use of the coarser fraction as aggregate for new concrete. The recovery of fine aggregates requires a cleaning by removing the hydrated cement waste (HCW). In this paper, the possibility to use HCW extracted from CDW as alternative component for the production of new clinker is explored.

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DeepDyve - Unlimited Access to Peer-Reviewed Journals

Aug 01, 2008  DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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