Sound insulation of a hollow concrete blocks wall made with construction and demolition waste and wood-based panels as linings

Ribeiro, Rodrigo Scoczynski; Sousa, Raylton Pereira de; Amarilla, Rosemara Santos Deniz; Sant'Ana, Luis Henrique; Gomes, Márcio Henrique de Avelar; Catai, Rodrigo Eduardo; Matoski, Adalberto

doi:10.1177/1351010x21993640

Cited by 5 publications

(2 citation statements)

References 36 publications

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“…Hollowed masonry units (HMU) are the popular choice of material for building walls, fences, or open channels because they permit rapid installation time, lighter structures, and lower construction cost [21]. They also provide noise and thermal insulation due to their hollowed cells [22]. This research contributes to the ongoing development of sustainable masonry products with enhanced mechanical and durability properties.…”

Section: Engineering Performance Of Hollowed Masonry Units Containing...mentioning

confidence: 99%

Potential of ceramic waste aggregate to improve the engineering performance of hollowed masonry units

Villarosa,

Benito,

Aragoncillo

et al. 2024

Preprint

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Due to their inherent brittleness, ceramic materials are prone to breakage, generating significant waste stream. This has driven research into repurposing the waste materials for various applications. Processed ceramic waste has been extensively studied in the past as a substitute for cement or sand to produce cementitious composites. However, its applications have primarily been limited to solid mortars and concrete. Here, the influence of ground ceramic tiles as a fine aggregate of hollowed masonry units (HMU) has been investigated. Ceramic waste aggregate (CWA) was introduced in HMUs at 0%, 25%, 50%, 75%, and 100% of the fine aggregate volume, and their compressive strength, densities at various moisture states, and moisture characteristics were evaluated. Results showed that adding CWA significantly improved the strength (by as much as three times), reduced the density (by 13.9%), minimally affected the absorption capacity, and lowered the material cost (by up to 21.3%) of HMU, with the 100% replacement achieving the most favorable results. X-ray fluorescence analysis showed that CWA contained a higher amount of amorphous silica than river sand, which may explain the improvement in the HMU’s engineering performance. The HMUs were found to satisfy the required strength for nonloadbearing blocks. Moreover, the block with 100% CWA was classified as medium weight while all other blocks were classified as normal weight. In summary, this study demonstrated the potential of ceramic tile waste as an aggregate alternative for nonloadbearing masonry construction.

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Section: Engineering Performance Of Hollowed Masonry Units Containing...mentioning

confidence: 99%

Potential of ceramic waste aggregate to improve the engineering performance of hollowed masonry units

Villarosa,

Benito,

Aragoncillo

et al. 2024

Preprint

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show abstract

“…The predictive model for orthotropic behavior, drawing from Granzotto et al's research (2020) [19] and Ribeiro et al (2021) [32], assumes the ability to compute the walls' elastic modulus using the block and mortar resistances as references. The equation used to determine the vertical compressive strength of the wall f k reads [33]…”

Section: Prediction Model For Orthotropic Behaviormentioning

confidence: 99%

Evaluating Airborne Sound Insulation in Dwellings Constructed with Hollow Ceramic Blocks under Brazilian Housing Policies

Scoczynski Ribeiro,

Arnela,

Braz-César

et al. 2024

Buildings

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In Brazil, there is a shortage of approximately 5.80 million residences, a challenge that intensified during the pandemic. Since 2013, there has been a mandate to implement specific performance criteria in residential constructions. However, many construction firms face difficulties in meeting these standards, especially concerning sound insulation in partition elements. This work aims to assess the airborne sound insulation performance and compliance with legal standards in new residential buildings through measurements and simulations. In particular, subsidized housing units for low-income populations are studied, which are eligible for reduced taxes on building loans. These buildings are typically made of hollow ceramic blocks with vertical perforations as separating walls, a commonly used national building material. Three buildings located in Guarapuava, a southern city in Brazil with a population of approximately 183,000 residents, were selected for this purpose. Measurements were conducted following ISO 16283-1 guidelines, whereas simulations were performed using ISO 12354-1, initially assuming a uniform plate but also exploring an alternative model that considers orthotropic behavior with analytical expressions. The calculations considered both static and dynamic moduli of elasticity. The results indicated that all the units failed to meet the specified standards. The measured DnT,w values were below the required thresholds, obtaining 42 < 45 dB for Building B1, 40 < 45 dB for Building B2, and 38 < 40 dB for Building B3. The predicted DnT,w values agreed well with the measured values when considering orthotropy with a dynamic elastic modulus. However, discrepancies were observed in the spectral analysis, especially at lower and higher frequencies. The findings suggest refraining from employing single-leaf partition walls made of vertical hollow ceramic blocks in such buildings. Improving sound insulation necessitates embracing a comprehensive strategy that takes into account the separating element, flanking paths, and the room geometries.

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Potential of ceramic waste aggregate to improve the engineering performance of hollowed masonry units

Villarosa,

Benito,

Aragoncillo

et al. 2024

Innov. Infrastruct. Solut.

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Sound insulation of a hollow concrete blocks wall made with construction and demolition waste and wood-based panels as linings

Cited by 5 publications

References 36 publications

Potential of ceramic waste aggregate to improve the engineering performance of hollowed masonry units

Potential of ceramic waste aggregate to improve the engineering performance of hollowed masonry units

Evaluating Airborne Sound Insulation in Dwellings Constructed with Hollow Ceramic Blocks under Brazilian Housing Policies

Potential of ceramic waste aggregate to improve the engineering performance of hollowed masonry units

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