Lightweight aggregate concrete with an open structure and a porous matrix with an improved ratio of compressive strength to dry density

Schumacher, Katrin; Saßmannshausen, Nils; Pritzel, Christian; Trettin, R.

doi:10.1016/j.conbuildmat.2020.120167

Cited by 38 publications

(14 citation statements)

References 4 publications

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“…Expanded artificial lightweight materials from different sources, such as expanded glass (Liaver and Poraver ) and expanded clay (Liapor and Leca ), were also utilized in lightweight aggregate concrete. These lightweight aggregates have been widely used in the construction and building industries, due to their superior performance in insulation and the reduction of dead weight [33,34].…”

Section: Introductionmentioning

confidence: 99%

Effect of different expanded aggregates on durability-related characteristics of lightweight aggregate concrete

Chung

Sikora

Kim

et al. 2021

Materials Characterization

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Section: Introductionmentioning

confidence: 99%

Effect of different expanded aggregates on durability-related characteristics of lightweight aggregate concrete

Chung

Sikora

Kim

et al. 2021

Materials Characterization

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“…The mechanical behavior of lightweight foamed concrete is markedly affected by microstructural properties, related to the distribution of air bubbles and development of hydration products [15]. Tested after 28 day of curing and the result were calculated from the mean of specimens [16]. Even though lightweight concrete is not generally used as a major component of structures, there are minimum requirements regarding its mechanical proper-ties, when it is to be used as a part of structures, with compressive strength being an important property regulating concrete quality [17].…”

Section: Mechanical Properties Of Concretementioning

confidence: 99%

Flexural Behavior of Normal and Lightweight Concrete Composite Beams

et al. 2021

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This paper presents an experimental study of the behavior of Normal Concrete Beams (NCB) and composite beams with lightweight foamed concrete (CB), reinforced with steel bar measuring 2 f 8 mm in the compressive section and 2 D 16 mm in the tensile section, shear steel bar f 8 mm. The sample consisted of two normal concrete beams (NCB) and two composite beams with lightweight foamed concrete (CB). The main variables in this study are the type of concrete, the type of steel bar and the flexural behavior. The beam samples were tested by two-point loading, failure mode and crack width were observed. The results showed that the flexural process of normal concrete blocks (NCB) and composite beams with lightweight foamed concrete (CB) was almost the same. There is no slip failure at the combined interface, the flexural capacity of the composite beam with lightweight foamed concrete can be calculated based on the statics analysis and plane-section assumptions. To calculate the ultimate capacity of a composite beam with lightweight foamed concrete is to convert a section consisting of more than one fc' to an equivalent section consisting of one fc'. Furthermore, it is validated by calculating the theoretical moment capacity and comparing the theoretical moment capacity of the experimental results. The results of the flexural test, composite beam with lightweight foamed concrete (CB) showed ductile deflection behavior, diagonal crack patterns, and low flexural capacity of the beam (NCB). Doi: 10.28991/cej-2021-03091673 Full Text: PDF

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“…The work shows an improvement in the compressive strength of such concrete by almost 40% compared to conventional foam concrete. The same applied to the drying shrinkage; the change in length is reduced by almost 80 % [32].…”

Section: Introductionmentioning

confidence: 99%

“…The research [32] is devoted to the combination of foam concrete and lightweight aggregates (pumice, expanded clay, and expanded perlite). The work shows an improvement in the compressive strength of such concrete by almost 40% compared to conventional foam concrete.…”

Section: Introductionmentioning

confidence: 99%

Combustibility of lightweight foam concrete based on natural protein foaming agent

Rybakov

Seliverstov²,

Usanova

et al. 2021

E3S Web Conf.

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There is an experimental study of samples of monolithic foam concrete “SOVBI” with a density of 205 kg /m3 (grade D200) for combustibility. The evaluation criteria are the following values of combustion characteristics: temperature increment in the furnace, duration of the stable flame burning, sample mass loss. The experimental results show the following values for foam concrete: temperature increment in the furnace of 2 °C, duration of the stable flame burning of 0 s, and sample mass of 24.4%. Thus, monolithic foam concrete with a density of 205 kg/m3 is noncombustible material. It is proposed to use monolithic foam concrete and other lightweight monolithic cellular foam concrete, as a structural fire protection for lightweight steel concrete structures. It, in turn, can increase the fire resistance of external walls and floor structure with the steel frame of cold-formed zinc-coated profiles.

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Lightweight aggregate concrete with an open structure and a porous matrix with an improved ratio of compressive strength to dry density

Cited by 38 publications

References 4 publications

Effect of different expanded aggregates on durability-related characteristics of lightweight aggregate concrete

Effect of different expanded aggregates on durability-related characteristics of lightweight aggregate concrete

Flexural Behavior of Normal and Lightweight Concrete Composite Beams

Combustibility of lightweight foam concrete based on natural protein foaming agent

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