— The combination of recycled aggregate concrete (RAC) and fibre-reinforced polymer (FRP) bars can effectively avoid corrosion. ... The failure mode was analysed, and the evolution of damage at the interface between the concrete and basalt fibre-reinforced polymer (BFRP) bars was investigated. Moreover, the bond mechanism and the …
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— Alternatively, one of the sustainable ways to alleviate this issue is reusing abandoned concrete for recycled aggregate concrete (RAC), which can be regarded as a renewable construction material [[3], [4], [5]]. This is a beneficial way to deal with massive concrete waste that both saves natural resources to protect our ecological environment ...
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— Probably, the changes of these properties are based on the changes in the crystalline structure of the fibres. Effect of elevated temperature on concrete compressive strength using basalt aggregate was studied . The study showed that the compressive strength of basalt aggregate concrete decreases when exposed to high temperature.
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— The triaxial mechanical behaviour of basalt fibre-reinforced coral aggregate concrete (BFCAC) was investigated in this study. The results show that an increase in the confining pressure and basalt fibre (BF) content causes an increase in the ductile deformation of BFCAC. The BF and confining pressure can increase the contraction …
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— This study aims at environmentally assessing the most significant input and output flows related to the production of concrete using basalt aggregates. For this …
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— 1. Introduction. Natural aggregate (NA) is one of the natural resources used in producing concrete. It is about 75% of any concrete mix. The worldwide consumption of NA is about 48.3 billion tons yearly [1].On the other hand, it has been stated that 850 million tons of construction wastes were produced in EU yearly [2].This amount of waste has a …
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— The inclusions of fibers to 25% recycled aggregate mixes, split tensile strength was much higher as compared to control mix. It was concluded that addition of basalt fibers provides a viable option to recycle recycled aggregate in concrete production.
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— The mechanical properties of recycled aggregate concrete (RAC) gradually decreased with the increase of recycled aggregate ... BFNAC and BFRAC denote basalt fibre reinforced natural aggregate concrete and basalt fibre reinforced recycled aggregate concrete respectively. Where 0.2, 0.3, 0.4 indicates that the volume fraction of BF is 0.2 …
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— Basalt fiber reinforced recycled aggregate concrete (BFRAC) is a high-performance, environmentally friendly material that combines lightweight, high-strength fibers with low-carbon recycled aggregates (RAs), positioned for extensive use in …
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— The coarse basalt aggregate results in a decrease on mechanical strength, but the decrease degree is rather limited. With the increase of particle size of basalt aggregate, both compressive and tensile splitting strengths tend to decrease, from 144 MPa to 132 MPa and 9.8 MPa to 8.2 MPa at 28 days, respectively. •
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— The split tensile strength of basalt fiber-reinforced coral aggregate concrete (BFRCAC-SS) is a critical parameter in structural design because it directly affects the load-bearing capacity and durability of BFRCAC structures.
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— ANALYSIS OF USE OF BASALT AGGREGATE IN CONCRETE MIXES WITH GRANITE STONE UNDER M-20 & M-25 GRADES . Guided by: Dr. Ashad Ullah Qureshi . Contact: 6260651575, …
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— In addition, basalt fiber significantly affects the workability of self-compacting concrete. Mazloom et al. [54] and Ponikiewski et al. [55] investigated the effect of basalt fiber on the workability of self-compacting concrete via a V-funnel test and a T 500 flow-time test. They discovered that both the V-funnel time and T 500 flow time increased …
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— The pavement contractor obtained some 250,000 tonnes of concrete aggregate by quarrying basalt from aa lava flows associated with highly vesicular basalt scoria ejected during Strombolian-type ...
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To analyze the strength indices and conversion relations of basalt fibre-reinforced recycled aggregate concrete (BFRRC), the basic strength indices of BFRRC were tested, and the influence of basalt fibre (BF) content and replacement rate of recycled coarse aggregate on the failure mode and strength indices was analyzed and discussed. A simple and …
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— In order to improve the frost resistance of concrete after freeze-thaw cycles and keep strength and appearance intact, existing research focuses on the impact of material damage on macro-mechanical properties,such as exploring the evolution of concrete mechanical properties under freezing-thawing cycles from the aggregate, water …
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— This study aims to produce the HSSCC series by using basalt and waste marble aggregates in certain volumetric ratios instead of limestone-based crushed stone used as coarse aggregate in...
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— Cubic respond surface (left) and contour plot (right)- effect of recycled aggregate and basalt fiber on the compressive strength. Download : Download high-res image (283KB) Download : Download full-size image; Fig. 11. Quadratic respond surface (left) and contour plot (right)- effect of recycled aggregate and basalt fiber on the …
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— Mix Proportioning. Three normal strength concrete mixes containing quartzite, granite and basalt aggregate were prepared based on the trial method keeping in view the guidelines of IS: 10262 [] at an ambient temperature of 27 ± 2 °C and relative humidity of 60%.These concrete mixes were designated as NSC1 (quartzite aggregate …
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ANALYSIS OF USE OF BASALT AGGREGATE IN CONCRETE MIXES WITH GRANITE STONE UNDER M-20 & M-25 GRADES ABSTRACT This study aims at environmentally assessing the most significant input and output flows related to the production of concrete using basalt aggregates. An experimental program is set up to test the effect of basalt …
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— To deal with the poor mechanical and durability of Recycled aggregate concrete (RAC), the effects of the addition of Nano-SiO 2 (NS), Basalt fiber (BF), and composite addition of NS and BF are put forward. The addition of BF reduces the generation and development of early primary microcracks in RAC and prevents the …
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— Basalt in cementitious composites can be utilized in various forms. In its natural state, depending on its grain size, it can play a role of a pozzolanic active …
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— Recycled concrete aggregate (RCA), which is obtained by crushing old concrete elements from C&D waste, has been considered as an alternative aggregate material in structural concrete, aiming to improve resource sustainability in the construction industry. ... basalt fibre is beneficial to the improvement of the compressive strength of …
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— In order to investigate the tensile properties of basalt fibre reinforced recycled aggregate concrete (BFRAC), the axial tensile tests were carried out on BFRAC specimens using the concrete axial tensile testing device. The effects of basalt fibre (BF) content and recycled aggregate replacement rate on the tensile properties of BFRAC were …
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— The modulus of elasticity of concrete is a function of the modulus of elasticity of aggregate and cement matrix, as well as their relative proportions. ... Khan et al. (2022) exposed the hybrid fiber-reinforced concrete (basalt and steel fibers) to 850 °C temperature. The basalt fibers of length 12, 25, 37 and 50 mm were used at 0.15, 0.30, 0. ...
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— This present research was on the comparison of the efficacious use of basalt and granite as coarse aggregates in concrete work. In order to obtain the basis for comparison, physical and structural ...
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— 1. Introduction. In South Korea, the extensive construction of concrete buildings with rapid industrialization since the 1970s has resulted in an indiscriminate collection of raw material aggregates, …
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— Basic porous basalt aggregates, are introduced to replace acidic silica aggregates with control of shape, size, and porosity for less dense parent basalt …
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gneiss aggregate concrete had better residual mechan-ical properties than the basalt aggregate concrete. Keywords Concrete · Gneiss aggregate · Basalt aggregate · High temperature · Thermal expansion · Thermal sensitivity · Residual mechanical properties 1L. L. M. Ngueyep Introduction Hardened concrete can be visualized as a compos-
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— 1. Introduction. Commonly, the coarse aggregate used in concrete casting is natural sand and gravel. Every year, huge quantities of natural aggregates have been consumed due to the large production of concrete, leading to the depletion of raw materials and degradation of the ecosystem [1].Therefore, artificial lightweight aggregates starts to …
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Uses of Basalt. Basalt is used for a wide variety of purposes. It is most commonly crushed for use as an aggregate in construction projects. Crushed basalt is used for road base, concrete aggregate, asphalt …
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— To determine the compressive strength (CS) and tensile strength (TS) of basalt fiber reinforced concrete (BFRC), this study will develop empirical models using gene expression programming (GEP ...
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— Based on dynamic triaxial experimental results for basalt fibre-reinforced coral aggregate concrete (BFRCAC), the dynamic Mohr–Coulomb (M − C), Hoek–Brown (H–B), and Drucker–Prager (D–P) strength criteria for BFRCAC are established. ... In view of this, BF-reinforced coral aggregate concrete (BFRCAC) was prepared using BF in this ...
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This is because upon mixing the fiber into the coral aggregate concrete, part of the cement slurry that originally covered the aggregate is occupied by the fiber, the cement slurry between the aggregates is reduced, and the friction between the two increases. ... Dynamic constitutive relation of basalt fiber reinforced concrete under impact ...
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— To compensate for the performance deficiencies as well as expand the application field of recycled aggregate concrete (RAC), this study provides an innovative material-component type of basalt fiber-reinforced recycled aggregate concrete (BFRRAC)-filled square steel tubular columns.
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