نتایج جستجو برای: basalt fibers
تعداد نتایج: 73921 فیلتر نتایج به سال:
Inspired by muscle structure, the synergy between basalt fibers (BF) and expansive agent (EA) was revealed utilized for development of self-prestressing concrete (SPC). When BF EA were used together, restraining action against autogenous expansion yielded active confining stress, during which prestressed, producing SPC. The properties SPC investigated varying (0–0.6%) (0–3%) contents. addition ...
Currently, the introducing of basalt and natural fibers into different geopolymer swift growth geopolymers. Despite geopolymers have good properties such as fire resistance, flame higher compressive strength durability, they suffer from low tensile flexural strength. Different types were used to increase strength, fracture toughness ductility The current article goals brief available earlier st...
Fibers are applied to construction works improve the strength and brittle failure of soil. In this paper, fibers with a length 6 mm added microbial cemented sand, fiber types content research variable. Unconfined compressive (UCS), permeability coefficient, water absorption rate, dry density, calcium carbonate precipitation solidified sand were tested. The physical mechanical properties on immo...
This article discusses the dissolution of mineral fibers in simulated physiological fluids (SPF), and the parameters that affect the solubility measurement in a dynamic test where an SPF runs through a cell containing fibers (Scholze and Conradt test). Solutions simulate either the extracellular fluid (pH 7.6) or the intracellular fluid (pH 4.5). The fibers have various chemical compositions an...
The preparation of fiber-reinforced phosphorus building gypsum composite materials (FRPGCs) is an important approach to enlarge the utilization phosphogypsum resources. Through reinforcing (PBG) with basalt fiber (BF), this article probes into effects length and content BF on working performance mechanical properties basalt-fiber-reinforced (BRPGCs) accesses toughness BRPGCs under bending loads...
Environmental impact is becoming increasingly important in the automotive industry, with car manufacturers looking to reduce CO 2 emissions through cleaner engines and structural weight reduction. Composite materials offer an excellent alternative standard steels significant reduction ability produce functional parts (Rangappa et al., Polymer Composites, 2022,43, 645–691), (Jeyaguru 2022, 43, 3...
We apply 2-D wave-equation prestack depth migration to a North Sea basalt dataset. High velocity and impedance contrasts across a basalt layer causes low P-wave reflection signal-to-noise ratio under the basalt. We first migrate the P-wave data with a provided depth velocity model, and then replace sub-basalt P-wave velocity with a simple estimate of shear wave velocity and migrate locally-conv...
The proposal by Hubbard et al. (1) that "Very High Alumina basalt" ("VHA basalt") may represent an important primary lunar magma type neglects consideration of certain well-characterized high-magnesium highland rocks, among them spinel troctolite from Luna 20 (2) and Apollo 16 samples (3) and dunite from Apollo 17 samples (4), and the possibility that "VHA basalt" may in fact have originated by...
This article reviews recent developments in fibers and textiles for Personal Protective Equipment (PPE) applications. Fibers are grouped into six categories: highly extensible elastomeric fibers, cellulose-based commodity synthetic high strength inorganic materials, performance polymer fibers. New with include polyester-based elastic shape memory polyurethane. In the case of environmentally fri...
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