The Table 3. shows the various aspects of the cenosphere, the experiment was carried out for the measurement for speed of dilatation wave in which cement and cenosphere been considered as the composite material while the specimen size is 300 mm × 300 mm × 13 mm. Aspect ratio that is width to thickness ratio has been considered as …
Semantic Scholar extracted view of "Fly ash cenosphere: characterization, processing, and properties" by A. Hanif et al. Skip to search form Skip to main content Skip to ... Formulating a mix design for 3D concrete (3DCP) is challenging, as it involves an iterative approach, wasting a lot of resources, time. Save. 78 References ...
This study developed a novel TESCM by integrating cement mortar with polyethylene glycol@SiO 2-coated eutectic hydrated salt/fly ash cenosphere encapsulated PCM, in order to improve the mechanical property and cost-effectiveness. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and attenuated total …
Therefore, this investigation is focused on the study of the variations in specific compressive strength (SCS) of concrete incorporating fly ash cenosphere (FAC) as an alternative of natural fine aggregate (NFA). By doing so, the pollution of soil, water and air due to disposal of FAC can also be solved. To fulfil the above objectives, concrete ...
Ordinary Portland cement (OPC; Type 52.5) from Hong Kong Green Island Cement Ltd, Fly Ash Cenosphere (FAC) from Zhen Yang, Hebei China, and Nano Silica (NS) from Sigma – Aldrich were used in this exploratory study. The OPC used had a specific gravity of 3.14 while the bulk density of the FAC and NS were 720 kg/m 3 and …
The utilization of Fly Ash Cenosphere (FAC) as a substitute for sand in concrete presents a practical solution to address environmental concerns stemming from the disposal of fly ash. However, it's essential to recognize that the strength properties of FAC concrete differ from those of conventional M sand concrete. To effectively …
Compressive strength and split tensile strength values fall after 10% replacement, whereas flexural strength values rise. Specific gravity of light weight concrete is 2.3. It demonstrates how the strength of concrete diminishes when fly ash cenosphere and pumice aggregate percentages rise. 4. Conclusion •
The fly ash cenosphere is a kind of lightweight hollow particle extracted from the coal combustion by-products, which has attracted widespread interests in the past decades. The fly ash cenospheres (CPs) are primarily used as hollow particle fillers in ed concretes and insulating layers of the energy efficient buildings and …
Researches on fly ash cenosphere (FAC) containing cement-based composites (FACC), from 1984 till to date, have been reviewed.. The mechanical, structural, durability-related, time-dependent, and functional properties of FACC are summarized. • Various properties of FACC are compared with concretes containing conventionally …
Fly Ash is used in concrete to surge the performance, strength and stability of concrete. The use of flyash is one of the cost effective. The amount of Portland cement is reduced by using fly ash. It is used in the Portland cement has a lot of benefits and also improves the performance in fresh and hardened concrete state. Fly ash in cement ...
It was also observed that the cenosphere contribute to the late gain in the strength of the concrete similar to the fly ash concrete. The thermal conductivity of the concrete reduced by more than 50% with the incorporation of the cenosphere in the concrete. From this research it can be concluded that cenosphere can be used as a …
Fly ash cenospheres (FACs) are by-products from fly ash that are spherical, hollow and lightweight and have good heat resistance [19, 20]. FACs could be used to reduce the bulk density of DS concrete, and …
The cement used is P.O. 42.5 ordinary Portland cement; the fly ash is grade II; the coarse aggregate is continuously graded gravel with a particle size of 5–20 mm; …
Fly ash constitutes of 50–90% of solids and comprises Figure 1 Applications of coal in different industries worldwide [6]. 4540 J ... concrete, alloys. Moreover, cenosphere is a perfect ingredient (as a binder or fine aggregate) to be used in concrete due to its properties like chemical inertness, excellent insu-lation, high permeability and ...
In this study, the potential of using fly ash cenosphere—capric acid (CeCA) composite PCM in concrete is evaluated. The mechanical, durability and thermal …
Section snippets Cenosphere formation. Fig. 2a shows a simplified coal power plant during which minor amounts of cenospheres are formed next to major content of fly ash.As a result of coal combustion in power plants, fly ash waste is enriched in most elements that can be found in coal except for the most volatile elements, such as Hg [39].
This study delves into the cost benefits of employing fly ash cenosphere concrete, comparing the results to those of conventional concrete. The investigation focuses on …
1. Introduction. With the increasing demand for power generation, there is an increasing number of coal-related ashes, such as fly ash, bottom ash, coal gasification fly ash and fly ash cenosphere (Jiang et al., 2020; Xiao et al., 2022; Golewski, 2023; He et al., 2023).However, among these ashes, fly ash cenosphere (FAC) is not widely used …
Cenospheres: A review. Navid Ranjbar, Carsten Kuenzel, in Fuel, 2017. Abstract. Cenospheres are one of the most value added fractions of coal fly ash. They have a hollow spherical structure and can be applied in many industrial applications, due to their superior properties; such as low bulk density, high thermal resistance, high workability …
To reduce the EI of cement and aggregate production, fly ash was used as a replacement material (i.e., sintered fly ash instead of coarse aggregate, cenosphere fly ash instead of sand, and fly ash ...
The present research work explores the use of fly ash cenosphere (FAC) and sintered fly ash aggregate (SFA) as replacements of natural fine aggregate (NFA) …
Green Ultra-Light Weight Cement Composite: Aerogel, Fly ash Cenosphere, Silica Fume, PVA Fibers: 70 % replaced with binder content: 0.70: Density −1144 to 1289 Kg/m 3 Compressive strength – 18.63 to 23.54 MPa Flexural Strength – 3.66 to 4.94 MPa Elastic modulus −6.57 to 8.44 GPa Porosity- 43–53 % Thermal Conductivity – Reduction …
Fly ash cenosphere. The name "cenosphere" derived from two Greek words: kenos (hollow) and sphaira (sphere) [4]. Though the characteristics and origins similar to fly ash it is lighter than fly ash. Other than coal production, cenosphere is obtained in nuclear power plants and during volcanic activities.
Cenospheres are separated from fly ash due to which they contain a similar composition as fly ash. • Cenospheres have a high aluminate and silicate content, which causes them to have Pozzolanic reactivity. Cenosphere silicate reacts with the …
of concrete. Fly ash cenospheres (FACs) are by-products from fly ash that are spherical, hollow and lightweight and have good heat resistance [19,20]. FACs could be used to reduce the bulk density of DS concrete, and they could also be beneficial for industrial waste utilization and environmental protection. Hanif [21] found that FACs …
The coal fly ash gives the material called cenosphere and this considered to be the good utilization in many sectors all across the globe. The properties of the cenosphere make it a good material ...
The utilization of cenosphere by-product of fly ash as a substitution of sand in concrete is an effective way to reduce thermal conductivity. This study investigates the mechanical and thermal ...
Fly ash (FA) cenosphere is one such industrial product used in the concrete as a partial or full replacement of fine aggregate, which can be able to use for non-structural applications. Whereas for structural applications, reinforcement in the concrete and their bond behavior is an essential factor that influences its structural behavior.
Keywords Fly ash cenosphere Lightweight concrete Strength of concrete Super-plasticizer Volume of voids Water absorption Introduction Today concrete is recognized as a most vital construction material because of its versatility in strength, durability and low maintenance cost. The demand to make it lighter has been the subject of research …
This investigation is intended to develop lightweight concrete by replacing the natural fine aggregate (NFA) with an industrial waste called fly ash cenosphere (FAC). For achieving this target, eleven concrete mixes were prepared which include one control mix and another ten mixes prepared in two phases by replacing 20%, 40%, 60%, 80% and …
The Workability and Mechanical Performance of Fly Ash Cenosphere–Desert Sand Ceramsite Concrete: An Experimental Study and Analysis February 2023 Materials 16(3):1298
The aforementioned findings indicate that the viable option for predicting the compressive strength of fly ash cenosphere concrete can be done by ANN. References. Safiuddin M, Jumaat MZ, Salam MA, Islam MS, Hashim R (2010) Utilization of solid wastes in construction materials. Int J Phys Sci 5:1952–1963
Further drawbacks can be the dense accumulation of fly ash particles on the surface of buoyant, which limits the sinking of solid particles in class C and F fly ash, resulting in an increased the impurity of the cenosphere product. In addition, when fly ash has a high calcium content, Ca(OH) 2 crystals can be formed on the surface of …
