Compressive strength of light-weight concrete material made from treated wood waste as a coarse aggregate

Alrubaie, Murtada Abass A.; Wtaife, Salam; Alsafy, Zahraa Hussein Joudah; Khalid, Nur Hafizah A.

doi:10.15376/biores.18.1.111-130

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…In this study, the standard sand was prepared in accordance with the guidelines specified in GB 178-1997 (1979). Aggregates size distribution (Alrubaie et al 2023) is shown in Table 3. The silicon oxide content in standard-sand was greater than 96%, the percentage of the loss of ignition (LOI) was less than 0.4%, and sediment percentage was less than 0.2%.…”

Section: Aggregatesmentioning

confidence: 99%

Distilled spirits lees ash as cement additive

Song

Zhang

et al. 2023

BioRes

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The voluminous generation of distilled spirits lees (DSL) in China presents a challenge for proper disposal and potential environmental pollution. In an effort to address this issue, this study aimed to find a resourceful solution for DSL utilization. The application of incinerated rice husk ash as a mortar supplementary material in cement provides an innovative solution for the disposal of DSL. Five samples of distilled spirits lees ash (DSLA) were produced using both muffle furnace (MF) and fluidized bed (FB) combustion at different temperatures. The properties of DSLA were characterized through measurements of specific surface area and observations using scanning electron microscopy (SEM). Mortar specimens were prepared by replacing 10% of cement with DSLA, and strength tests were conducted. The SEM results revealed the crisscross mesh structures in the DSLA samples. Additionally, the findings indicated a strong connection between the specific surface areas and the micromorphology. In this work, all DSLA samples, except for the one produced in FB at 800 °C, could improve compressive and flexural strengths in the prepared mortar specimens and were suitable for employment as cement additives.

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Section: Aggregatesmentioning

confidence: 99%

Distilled spirits lees ash as cement additive

Song

Zhang

et al. 2023

BioRes

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“…Hydro-thermal treatment is also used [4,5]. The most promising modification method is wood pressing [6][7][8]. However, this method has a significant drawback: increased formability.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of shapes and dimensions of compressed wood using chemical and physical methods

et al. 2023

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Descriptions of methods and results of experiments on the preservation of geometry and dimensional parameters of compressed wood using chemical and physical methods are given. Wide ranges of substances were used as chemical stabilizers in urea aqueous solution (plasticizer during pressing). Wood treatment with ultrasound, liquid nitrogen and pulsed magnetic field was used as physical methods. Urotropine, urea-formaldehyde oligomer, phenol-formaldehyde resin, butyric anhydride and physical methods (liquid nitrogen and pulsed magnetic field), as well as ultrasound can be applied to increase form stability of pressed wood to the level of swelling in water and water absorption of natural wood (respectively, 15-20% and 30-45%). Cashew nut shell liquid is recommended to obtain stable pressed wood. The liquid, with a content of 6-12% (by dry residue) relative to the mass of dry wood during heat treatment in the temperature range of 150-155°C for 8 hours, gives limiting volume swelling 7-8% and limiting water absorption 14-18%. Fully stable compressed wood was obtained after exhaustive acetylation with acetic anhydride and subsequent maximum impregnation with phenol alcohols (more than 70% of content) and thermocatalytic curing. However, this method cannot be recommended due to high toxicity and material weakness.

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