2150) A Study on the Properties of Reinforced Autoclaved Lightweight Concrete Slabs Subjected to Bending : For Slabs of Specific Gravity 0.6〜0.7

The artificial lightweight aggregates (ALAs) were manufactured using dredged soil produced at thermal power plant and waste catalyst slag by direct sintering method at 1050~1250°C for 10min. The ALAs of 100% dredged soil showed the black core phenomenon even at the low sintering temperature as 1050°C and become lightened by bloating pores in black core area with sintering temperature. On the other hand, the aggregates with 100% waste catalyst slag did not showed black coring and bloating phenomenon and had the low forming ability and many cracks inside. Adding the dredged soil to the waste catalyst slag decrease the specific gravity by promoting the black coring and bloating inside. The water absorption(%) of ALAs decreased with sintering temperature. The ALAs fabricated in this study showed the specific gravity of 0.8~2.0 and water absorption of 2~16% so it could be applied to various fields such as the lightweight concrete or the field of the porous carriers for purification of a contaminated soil or water.

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Design of lightweight concrete slabs under two-way shear without shear reinforcements: A comparative study and a new formula

Engineering Structures ◽

10.1016/j.engstruct.2020.111076 ◽

2020 ◽

Vol 222 ◽

pp. 111076 ◽

Cited By ~ 1

Author(s):

A. Deifalla

Keyword(s):

Comparative Study ◽

Lightweight Concrete ◽

Concrete Slabs ◽

Shear Reinforcements ◽

New Formula

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Instantaneous deflection of self-compacting and lightweight concrete slabs at early-age

Engineering Solid Mechanics ◽

10.5267/j.esm.2018.2.001 ◽

2018 ◽

pp. 143-154 ◽

Cited By ~ 1

Author(s):

Behnam Vakhshouri ◽

Shami Nejadi

Keyword(s):

Lightweight Concrete ◽

Concrete Slabs ◽

Early Age

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Experience of using high-rigidity bearing reinforcement in monolithic lightweight concrete slabs

MATEC Web of Conferences ◽

10.1051/matecconf/201926505031 ◽

2019 ◽

Vol 265 ◽

pp. 05031

Author(s):

Artem Davidyuk ◽

Tejmuraz Guladze ◽

Yuliya Kustikova ◽

Timofey Laryushkin

Keyword(s):

Lightweight Concrete ◽

Concrete Slabs ◽

Reinforcing Bars ◽

High Rigidity

The article describes the experience of erecting lightweight concrete monolithic slabs with the use of reinforcing bars of increased rigidity. As a result, a reduction in costs of 25 ... 30%, compared with the floors of heavy concrete without pre-stressed reinforcement is reached.

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