نتایج جستجو برای: alkali basalt

تعداد نتایج: 19800  

Ch. Stern M. H. Karimpour S. Saadat

The Nayband strike-slip fault forms the western margin of the micro-continental Lut block in Eastern Iran. Neogene and Quaternary mafic volcanic rocks collected near Tabas, along the northern part of the fault (NNF; 15 Ma), and further to the south, along the middle part of the fault (MNF; 2 Ma), are within-plate sodic-series alkali olivine basalts with high TiO2 and up to >16% normative nephel...

Journal: :Sustainability 2021

Excessive consumption of cement in construction materials has resulted a negative impact on the environment. This leads to need finding an alternative binder as sustainable material. Different wastes that are rich aluminosilicates have proved be valuable material for alkali-activated product development, which contains zero cement. Alkali-activated products claimed and cost-effective. In presen...

2017
Huaxin Liu Jianwei Yang Xuxu Xue

In order to study the basic mechanical properties of basalt fiber reinforced recycled aggregate concrete, the concrete mix ratio, the length and the volume mixing ratio of chopped basalt fiber yarn are designed for changing factors. A total of 324 specimens have been completed for this investigation. The compressive strength, splitting tensile strength, elastic modulus and axial compressive str...

Journal: :Academic journal of science and technology 2022

Light-transmitting concrete prepared by the combination of light-transmitting materials and matrix is a new building material with functions energy saving consumption reduction. In this paper, current research status scholars in field at home abroad integrated explored, so as to carry out analysis interfacial bonding performance between concrete. This paper selects acrylic material, silicate ce...

2015
E Karavaeva A Rogozhnikov V Nikitin Yu Cherepennikov

The article touches upon the technology of basalt fiber manufacturing and prospects of its use in dental practice. Two kinds of construction using basalt fiber have been proposed. The first one is a splinting construction for mobile teeth and the second one is the reinforced base for removable plate-denture. The work presents the results of the investigation of physical and mechanical propertie...

Journal: :Journal of building engineering 2021

Fiber reinforced polymer (FRP) bars are being widely used in civil engineering applications to replace steel due their excellent durability. Existing research on the durability of FRP mainly focuses glass fiber (GFRP) and basalt (BFRP) bars. Different conclusions have been drawn differences fibers, resins, volume fractions, solution concentrations, aging temperatures adopted by researchers. Som...

Journal: :international journal of advanced design and manufacturing technology 0
s. mohammad reza khalili k.n. toosi university of technology south tehran branch, islamic azad university r. eslami farsani k.n. toosi university of technology v. daghigh islamic azad university

changes in moisture content and temperature can perturb both stiffness and strength and as such the impact resistance of composite structures. in this paper, the pre-notched basalt fibre reinforced epoxy (bfre) composite specimens are studied under charpy impact loads in order to investigate the changes in impact energy absorption (fracture toughness) with different kinds of aging conditions. t...

Journal: :Minerals 2023

In this paper, we focus on the geological features of volcanic edifices and geochemistry intermediate–basic rocks Shaerbuti Mountain, which offer a new perspective recycled materials in study area. The consist calc-alkali basalt andesite formed an arc setting. porphyroclastic texture basalt, explosive breccia rock, distribution both agglomerate provide robust evidence that edifice exists Mounta...

2015
Jeong-Il Choi Bang Yeon Lee

The basalt fiber is a promising reinforcing fiber because it has a relatively higher tensile strength and a density similar to that of a concrete matrix as well as no corrosion possibility. This study investigated experimentally the bonding properties of basalt fiber with cementitious material as well as the effect of fiber orientation on the tensile strength of basalt fiber for evaluating basa...

Journal: :Remote Sensing 2013
Jessica J. Mitchell Rupesh Shrestha Carol A. Moore-Ellison Nancy F. Glenn

Basalt outcrops are significant features in the Western United States and consistently present challenges to Natural Resources Conservation Service (NRCS) soil mapping efforts. Current soil survey methods to estimate basalt outcrops involve field transects and are impractical for mapping regionally extensive areas. The purpose of this research was to investigate remote sensing methods to effect...

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