Coral aggregate concrete with a water−binder ratio of 0.35 is designed, ... Dynamic mechanical properties of basalt fiber reinforced concrete using a split Hopkinson pressure bar. Acta Mater. Compos. Sin., 25 (2008), pp. 135-142, 10.3321/j.issn:1000-3851.2008.02.023. Google Scholar
The SureCrete RESIST Epoxy Sand Overlay System. SureCrete's RESIST is a active, low modulus, two-component epoxy overlay system that when combined with a kiln-dried, properly sourced wear surface aggregate, produces a reliant overlay with benefits not found in traditional concrete overlays.
In the present paper, an investigation on the natural and anthropic radioactivity and heavy metals content in a basalt aggregate for concrete from Sicily, Southern Italy, was performed as a case study. In particular, the evaluation of the specific activity of radium-226, thorium-232, potassium-40 and caesium-137 radionuclides was …
This study aims to evaluate the macro-micro-meso-mechanical properties of basalt fiber (BF)-reinforced recycled aggregate concrete (BFRAC). Firstly, the effects of BF with different contents and lengths on the mechanical properties of recycled aggregate concrete (RAC) at different ages were analyzed.
Dong et al. perceived recycled concrete aggregate Built-in basalt fibres can improve the deformability of concrete due to better adhesion of the grout and aggregates. Few studies explain the basalt …
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 ...
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 …
Basalt used as concrete aggregate has different colors such as dark, gray, and dark grayish. Basalt usually contains 45–52 % silica (SiO 2) and oxides such as iron, calcium, and magnesium, compared to the most common igneous rocks [11]. Basaltic rocks' crushing and cohesive strengths are 170–220 MPa and 32–44 MPa, respectively [12].
In this study, as a concrete aggregate, basalt which is common around Diyarbakır province and mineral additives which are waste materials together with cement are used as binding material. This paper has come into prominence as it aims to determine proper admixture levels and usability of Diyarbakır basalt in concrete admixture following the ...
The bonding strength of the fiber–cement interface is the foundation for the reinforcement effect, and the addition of ordinary fibers introduces new microscopic interfaces, which increase the porosity and reduce the durability of concrete [23], [24], [25].Basalt fiber is highly compatible with concrete, and its interface is filled with …
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 …
Physical test results revealed that basalt have a specific gravity of 2.8 and 2.5, while granite have a specific gravity of 2.9 and 2.6. In density, basalt have a density of 1554.55kg/m3 while ...
Niu [28] and Wang [29] studied the chloride anti-corrosion capability of basalt fiber-reinforced coral aggregate concrete and found that 0.1%–0.2% fiber content can effectively inhibit chloride ion penetration. In summary, basalt fiber can widely adapt to various corrosive environments and significantly improve the mechanical properties and ...
In this experimental research, BOHAI brand Portland cement was used as cementing material. Recycled coarse aggregate is derived from the abandoned concrete beams using a crushing machine to achieve aggregate of different sizes (the original strength grade of concrete is C30, f c=34.2 MPa).Fly ash is produced by JINZHOU international thermal …
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 …
Modifying recycled aggregate concrete by aggregate surface treatment using sulphoaluminate cement and basalt powder. Author links open overlay panel Hongru Zhang a b, Tao Ji a, Hui Liu a, Shangliang Su a. Show more ... recycled aggregate concrete (RAC) has attracted increasing attention as an eco-friendly material which can …
This paper presents the results of a study that investigated the improvement of the mechanical properties of recycled concrete aggregate (RCA) produced by adding chopped basalt fibers (BF) with contents of 0.1%, 0.3%, 0.5%, 1%, and 1.5% by total volume of the mix to treated and untreated recycled aggregates.
The study performed by Yang [41] promoted basalt as one type of aggregate in concrete which can meet the requirements of crack resistance, frost resistance, and …
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 ...
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 ...
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 ...
This paper presented an experimental investigation on the axial stress–strain behavior of cement-based seawater coral aggregate concrete (CAC) and slag-based alkali-activated seawater coral aggregate concrete (AACAC) confined by basalt fiber‐reinforced polymer (BFRP) sheet, with different BFRP confinement …
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-
The replacement ratio of recycled coarse aggregate (RCA), the content of BF, and the temperature were utilized as the change parameters, and 27 groups of basalt fiber reinforced recycled aggregate concrete (BFRRC) specimens were designed to carry out the compressive strength test after elevated temperature.
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 …
Basalt fiber reinforced recycled aggregate concrete (BFRAC) is a high-performance, environmentally friendly material that combines lightweight, high-strength …
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, …
This paper studies the influence of basalt fibers on the mechanical properties, fatigue life, and toughness of Mechanically Recycled Aggregate Concrete (MRAC). Basalt fibers of varying volume fractions and lengths, along with quantified amounts of mineral powder and fly ash, are incorporated into MRAC to prepare Basalt …
Comparison with particulate-matter reduced emission basalt aggregates based concrete – Single score evaluation per Damage Category (Impact 2002+). Also …
To evaluate the feasibility of using basalt aggregate in concrete mixes and to produce an economical concrete mix with relatively higher strength and good workability. 3.0 Design mixes 3.1.Materials Used Water: binder In the present study, Ordinary Portland cement of 53 grade conforming to IS:12269-1987[4]has been used ...
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