Performance characteristics of dredged silt and high-performance lightweight aggregate concrete

Wang, H.Y.; Sheen, Yeong-Nain; Hung, Meng-Feng

doi:10.12989/cac.2010.7.1.053

Cited by 19 publications

(4 citation statements)

References 11 publications

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“…The production of lightweight aggregates (LWA) made from dredged sediments has been evaluated in many studies [26][27][28][29][30] and the results have shown their suitability for lightweight aggregate production due to their perpetual availability, homogeneity and mineralogical and chemical composition [26]. The practical use of dredged sediments into brick production as a suitable alternative to their current disposal paths has also been demonstrated [31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Use of Reservoir Sediment through Partial Application in Building Material

Junáková

Junak

2017

Sustainability

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Sediment, often considered a by-product of various activities within river basin management to be disposed of, or a pollutant to be controlled, is increasingly being acknowledged as a resource in need of management. The paper deals with the possibility of reusing sediment from two Slovak reservoirs (Klusov and Ruzin) as an alternative raw material in concrete production. Concrete specimens were prepared by a combination of original reservoir sediment, reservoir sediment mechanically activated by dry milling, reservoir sediment mechanically activated by dry milling together with biomass incinerator fly-ash as a binder. To improve the strength properties of specimens, sodium hydroxide (NaOH) was used as a sediment activator. Mixtures containing 40% of binder replacement by the above-mentioned combinations of original and treated sediments were tested for flexural and compressive strengths after 28, 90 and 365 days of curing. The results showed that the mixtures prepared from sediments milled without and with addition of fly ash as cement replacement satisfied the strength requirements for the compressive strength class C16/20 according to the European standard except the composites prepared with NaOH as the sediment activator. Addition of NaOH into composites in the concentration of 5 M as an activator of sediment indicated the negative impact on compressive and flexural strengths and thus NaOH was not an effective pozzolanic activator for sediments. This study reveals that the sediment may be considered as 40% cement substitution in building materials.

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Section: Introductionmentioning

confidence: 99%

Sustainable Use of Reservoir Sediment through Partial Application in Building Material

Junáková

Junak

2017

Sustainability

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“…Lightweight concrete has many favorable engineering properties such as its light weight, high strength, low expansibility, good heat insulation, sound dampening qualities, water and fire resistance, durability, stable volume, ease of use for construction, and low cost [3][4][5][6]. Compared with standard aggregates, lightweight aggregates have a lower water absorption and electrical resistance as well as better resistance to sulfate attack [7].…”

Section: Introductionmentioning

confidence: 99%

A study of the durability of recycled green building materials in lightweight aggregate concrete

Hunag

Wang

2015

Construction and Building Materials

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“…In general the structural concretes should have 28days-compressive strengths of more than 160 kg/cm 2 . Since the aggregate type has a main role in the strength properties of concretes, some researchers have investigated the influence of different natural and industrial aggregates including fly-ash (Lo et al, 2007, Wasserman & Bentur, 1997Chi et al, 2003), pumice (Sari & Pasamehmetoglu, 2005;Libre et al, 2011), natural pozzolan (Mouli & Khelafi, 2008), organic lightweight aggregates (Cheng et al, 2012), waste materials (Mahmud et al, 2011), dredged silt (Wang et al, 2010) clay-blended sludge (Tay et al, 1991), slag (Thomas & Bremner, 2012), oil palm shell (Shafigh et al, 2010) and shale (Zhuang et al, 2013) on the mechanical properties of lightweight aggregate concretes. Other researchers like Kim et al (2013), Wang and Tang (2012), Hassanpour et al (2012) and Pan et al (2011) studied experimentally the strength and mechanical behavior of other types of light weight concretes such as autoclaved aerated concrete, foamed concrete and fiber reinforced concretes.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on mechanical properties of different lightweight aggregate concretes

Hashemi¹

2014

10.5267/j.esm

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Lightweight concrete is a suitable constructional material, which can decrease the weight of buildings and the hazards of earthquake loads. Hence, a large number of research studies have been focused on designing and manufacturing high strength lightweight concretes. In this research using the natural and industrial lightweight aggregates frequently found in the southeast region of Iran (Kerman province), high strength and low cost light weight concretes were manufactured. The effects of aggregate type, aggregate size, and concrete mixture were studied experimentally on the compressive strength of concretes and the density and cost of manufactured samples.

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Performance characteristics of dredged silt and high-performance lightweight aggregate concrete

Cited by 19 publications

References 11 publications

Sustainable Use of Reservoir Sediment through Partial Application in Building Material

Sustainable Use of Reservoir Sediment through Partial Application in Building Material

A study of the durability of recycled green building materials in lightweight aggregate concrete

Experimental study on mechanical properties of different lightweight aggregate concretes

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