Impact loads lead to the failure of structures and significantly diminish their operational lifespan. The necessity to enhance impact performance has shown gradual progress, resulting in utilising nano-fillers as an additional reinforcement within the ma
were also shown to induce PD-like behavioral changes in zebrafish [20]. While these findings suggest that respiratory tract exposure to SiO2-NPs could be a risk factor for neurodegeneration, this has not been fully explored, and the mechanisms underlying these effects are largely unknown. In the...
Figure 2. Particle size distribution of fine aggregates. Table 1. Properties of materials. Table 2. Chemical composition of cement and copper slag. 3.2. Concrete Mix Proportion The concrete mix proportion was prepared according to BIS 10262, 2019 [48]. Seven parameters have been considered ...
Furthermore, the SEM images of the fractured surface of the PMMA/ZrO2 nanoparticle specimens presented signs of particle clustering, while large pores in the TiO2 nanoparticle specimens indicated that a greater space in between the matrix discontinued the stress distribution. This could be attributed ...
Figure 1. Particle size distribution of (a) natural coarse aggregate and ceramic coarse aggregate; (b) natural fine aggregate and ceramic fine aggregate. Figure 2. (a) Commercial cement; (b) river sand; (c) natural coarse aggregates (NCA)—10 mm; (d) natural coarse aggregates (NCA)—...
Furthermore, the choice for NHL mortars was found to be more sustainable when compared to the use of Portland cement (CEM) [27]. The flexural strength (ft,fl) vs. compressive strength (fc) correspondence of FRMs developed recently, composed of different types of binders and fibres, is ...
The initial and final setting times of the cement were 49 and 510 min, respectively. Moreover, the soundness of the cement obtained through an autoclave test was 0.3%. Table 1 tabulates the properties of the cement used. Table 1. Cement Properties. Fine aggregate (FA): Locally available...
Cement production is a major source of carbon dioxide pollution. An environmentally friendly concrete needs to be developed in order to overcome the adverse environmental impacts of cement production and the continuing depletion of natural resources. Pap
Every cement particle can be assumed to initiate hydration from the moment that it comes into contact with water. Water diffuses through the hydrate layer and reaches the surface cement particles and initiates a chemical reaction with the cement. And where can most problems be found in the ...
Due to larger surface area, fibers need to adsorb a lot of cement paste to wrap around them, which increases the viscosity of the mixture. Fibres form a network structure in the concrete which is restraining the fresh concrete from flow [35,36,37]. Figure 8. Slump test results of ...