Development of Water Retentive and Thermal Resistant Cement Concrete and Cooling Effects Evaluation

Wang, Xiaowei; Hu, Xinyu; Ji, Xiaoping; Chen, Bin; Chen, Hongqing

doi:10.3390/ma14206141

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…Water-retentive fillers are often incorporated into concrete to increase its capacity to store water. A water-retentive pavement is one that, when saturated, can hold onto rainwater for a period of time by using specific filler materials [91]. In addition, when the evaporated water close to the surface is gone, the water-retentive filler's pore structure can draw water from the base via capillary force.…”

Section: Innovative Streets and Pavement Systemsmentioning

confidence: 99%

Sustainable Mitigation Strategies for Urban Heat Island Effects in Urban Areas

Irfeey,

Chau,

Sumaiya

et al. 2023

Sustainability

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The globe is at a crossroads in terms of the urban heat island effect, with rising surface temperatures due to urbanization and an expanding built environment. This cause-and-effect connection may be linked to weather-related dangers, natural disasters, and disease outbreaks. Urbanization and industrialization will not lead to a secure and sustainable future. Finding solutions to problems such as the heat island effect is at the forefront of scientific research and policy development. Sustainable ways to decrease urban heat island impacts are a core principle for urban planners. This literature study examines the benefits of adding green infrastructure and sustainable materials in built-up areas to reduce the urban heat island effect. Materials such as reflective street pavements, coating materials including light-colored paint, phase-change materials, color-changing paint, fluorescence paint, and energy-efficient appliances are considered sustainable materials, whereas green infrastructure like green roofs, green walls, green parking and pavements, and shaded streets are considered to mitigate the urban heat island effect. The hurdles to the widespread adoption of such practices include a lack of governmental legislation, insufficient technological development, an erroneous estimation of economic gains, and unwillingness on the part of impacted parties.

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Section: Innovative Streets and Pavement Systemsmentioning

confidence: 99%

Sustainable Mitigation Strategies for Urban Heat Island Effects in Urban Areas

Irfeey,

Chau,

Sumaiya

et al. 2023

Sustainability

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“…It is in demand because it is a basic material that is easy to shape and relatively cheap compared to other construction materials. Concrete is a mixture of cement, fine aggregate, coarse aggregate, and water, which then hardens to form a solid object [1]- [5].…”

Section: Introductionmentioning

confidence: 99%

“…Taking into account the potential for fly ash produced by coal-using power plants in Indonesia, which is more than 1 million tons per year and the difficulties in storing fly ash, it is necessary to research the possibility of using coal ash from PLTU waste for example for industrial purposes [11]- [13]. Cement production generally uses the primary raw materials, namely limestone and clay, which contain silica compounds (SiO2) [1], [6], [10], [12], [14]- [17]. If we look at the composition of the number of compounds, the chemicals in fly ash are silica compounds; this potential can be used as a cement mixture.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Fly Ash Substitution in 3 Brands of PCC Cement on The Compressive Strength f Concrete

Aliansyah,

Firdaus

2024

JTI

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Fly ash, a by-product of coal combustion in thermal power plants is utilized as a substitute for Portland Cement in concrete due to its pozzolanic properties. Mainly, class F fly ash—produced from the combustion of anthracite coal at approximately 1560˚C (according to SK SNI S15-1990-F)—contains less than 10% lime (CaO) and exhibits significant pozzolanic or filler properties. This research investigates the impact of varying fly ash proportions (0%, 10%, 15%, and 20%) on the compressive strength of concrete. The experimental setup included 108 cylindrical test specimens (10 cm in diameter and 20 cm in height), representing different brands of cement and fly ash mixtures, tested at 7, 14, and 28 days. The study was conducted at PT. Waskita Beton Precast Plant in Sadang, Purwakarta, West Java, targeting a concrete compressive strength of 40 MPa. Results indicate that at 0% fly ash, the compressive strength using Garuda Cement reached 76.66 MPa after 28 days. However, this strength decreased with increasing fly ash content, measuring 72.35 MPa, 69.07 MPa, and 68.13 MPa for 10%, 15%, and 20% fly ash, respectively. These findings highlight the influence of fly ash content on the structural integrity of concrete, suggesting a potential trade-off between sustainability and mechanical performance. Keyword: Fly Ash, Compressive Strength of Concrete, Portland Cement

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“…The beam bending test was used to determine the effectiveness of various CE and FB additions in preventing cracking at low temperatures Fig.5. There should be less than a oneto-one ratio of materials with different thermal resistances in the mixture(Wang et al 2021).…”

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confidence: 99%

An assessment of the strategies for the energy-critical elements necessary for the development of sustainable energy sources

Krishna

Dhass

Arya

et al. 2023

Preprint

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There have been several strategies developed in order to increase the diversified supply of energy so that it can meet all of the demands for energy in the future. As a result, to ensure a healthy and sustainable energy future, it is imperative to warrant reliable and diverse energy supply sources if the “green energy economy” is to be realized. The purpose of developing and deploying clean energy technologies is to improve our overall energy security, reduce carbon footprint, and ensure that the generation of energy is secure and reliable in the future, making sure that we are in a position to spur economic growth in the future. In this paper, advancements in alternative sources of energy sustainability and strategies will be examined, so as to ensure there will be enough fuel to supply all of the future demands for energy. Several emerging clean energy technologies rely heavily on the availability of materials that exhibit unique properties that are necessary for their development. This paper examines the role that materials, such as rare earth metals and other critical materials, play in securing a clean energy economy and the development of clean energy economies in general. In order for the development of these technologies to be successful and sustainable, a number of these energy-critical materials are at risk of becoming unavailable. This is due to their limited availability, disruptions in supply, and the lack of suitable resources for their development. An action plan focusing on producing energy-critical materials in energy-efficient ways is discussed as part of an initiative to advance the development of clean and sustainable energy.

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Development of Water Retentive and Thermal Resistant Cement Concrete and Cooling Effects Evaluation

Cited by 8 publications

References 24 publications

Sustainable Mitigation Strategies for Urban Heat Island Effects in Urban Areas

Sustainable Mitigation Strategies for Urban Heat Island Effects in Urban Areas

The Effect of Fly Ash Substitution in 3 Brands of PCC Cement on The Compressive Strength f Concrete

An assessment of the strategies for the energy-critical elements necessary for the development of sustainable energy sources

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