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  • Basalt Aggregate as Coarse Aggregate in High Strength

    While using the basalt in concrete the original water cement ratio of concrete mix is to be corrected by the amount of water available in basalt aggregate. 2. The laboratory test results in compressive strength, seems to indicate that the increase in basalt percentage enhances the mix strength.

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  • EFFECTS OF BASALT AGGREGATES ON CONCRETE

    In this experimental study, it was concluded that the concretes produced with basalt aggregates might have better mechanical properties and be environmentally friendly and economical. Keywords

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  • Influence of Basalt Aggregate on Concrete Durability

    Basalts are the major source of aggregate for concrete and roadmaking in Melbourne, Australia. Although they have generally performed satisfactorily, some green basalts which contain secondary clay minerals have failed in roadways and concern has been expressed about their possible poor performance in structural concrete.

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  • The use of unsound basalt as concrete aggregate

    01.12.1984· International Symposium on Aggregates; Published: 01 December 1984; The use of unsound basalt as concrete aggregate. Utilisation de basaltes alterables comme granulats pour le beton. Francisco Rogrigues Andriolo, Bento Carlos Sgarboza 1 &

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  • Radiation shielding concrete made of Basalt aggregates

    29.08.2012· Basalt rocks from the chosen sites were ground and sieved to obtain coarse and fine aggregates to prepare concrete samples. Ten samples of concrete were prepared from each of the three chosen sites, i.e. 30 cubes of 10×10×10 cm 3. The samples were stored in a water tank for 28 d.

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  • EFFICACY OF BASALT AND GRANITE AS COARSE AGGREGATE IN

    Basalt . Coarse Aggregate . Compressive Strength ABSTRACT. This present research was on the comparison of the efficacious use of basalt and granite as coarse aggregates in concrete work. In order t o obtain the basis for comparison, physical and structural tests were conducted on the different materials of the concrete and the concrete samples respectively. Physical test results revealed that basalt have

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  • (PDF) Experimental Study on the Use of Basalt Aggregate in

    basalt also finds use as aggregate in concrete. Crushed basalt aggregate are dense fine grained rocks that are very dar k color-green or black and are formed when molte n lava from deep in earth’s...

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  • MECHANICAL PROPERTIES OF BASALT AGGREGATES UNDER THE

    Basalt rocks are commonly used as construction materials such as aggregate in concrete and asphalt, rock filling in dams and breakwaters, crushed gravel in railway ballast and airway foundation (Goodman, 1993). Most basalts are dark gray or black, but some are light gray.

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  • EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

    High-strength concrete containing basalt and normal-strength concrete containing basalt or limestone yield higher compressive strengths with higher coarse aggregate contents than with lower coarse aggregate contents. The compressive strength of high-strength concrete containing limestone is not affected by aggregate content.

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  • Aggregates for Concrete Memphis

    bination of gravels or crushed stone with particles predominantly larger than 5 mm (0.2 in.) and generally between 9.5 mm and 37.5 mm (3⁄ 8in. and 11⁄ 2in.). Some natural aggregate deposits, called pit-run gravel, consist of gravel and sand that can be readily used in concrete after minimal processing.

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  • Radiation shielding concrete made of Basalt aggregates

    Basalt could be used as aggregates for radiation shielding concretes successfully. This choice becomes very economic when Basalt is available locally. Care should be taken when choosing the Basalt type, as there are very low density types as well as weak types. Also care should be taken for the potential of neutron activation.

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  • Experimental Study on the Use of Basalt Aggregate in

    Keywords: basalt aggregate, concrete mixes, high strength, workability 1. Introduction Concrete technology has been changing rapidly and constantly since its discovery. The process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability, and workability as economically as possible, is

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  • Assesment of Alkali Resistance of Basalt Used as Concrete

    of aggregates for concrete. According to the test results, the studied basalt aggregates can be classified as innocuous with regard to alkali-silica reaction. Further, the 10% sodium hydroxide attack did not affect the compressive strength of concrete. Key words: alkali resistance, basalt aggregate, durability, alkali-silica reaction 1 Introduction

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  • Assesment of Alkali Resistance of Basalt Used as Concrete

    Dolomite aggregate were used in the latter test for comparison. The experimental results revealed that basaltic rocks quarried from As-Swaida'a region were suitable for production of aggregates for concrete. According to the test results, the studied basalt aggregates can be classified as innocuous with regard to alkali-silica reaction. Further

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  • Alkali basalts as aggregates in asphalt concretes

    Alkali basalts as aggregates in asphalt concretes. Authors: GREGEROVÁ Miroslava POSPÍŠIL Pavel Year of publication: 2005: Type: Article in Proceedings Conference: 10th Euroseminar on Microscopy Applied to Building Materials CD ROM: MU Faculty or unit : Faculty of Science

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  • Mechanisms Investigation of Basalt Fiber Concrete with

    Mechanisms Investigation of Basalt Fiber Concrete with Recycled Aggregate Guodong Li 1,2,*, Li Zhang 1,2, Fengnian Zhao 1,2 and Jiaqi Tang 1,2 1 Transportation Institute, Inner Mongolia University, Hohhot 010070, China; [email protected] (L.Z.); [email protected] (F.Z.); [email protected] (J.T.) 2 Inner Mongolia Engineering Research Center of Testing and

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  • Acid Resistance, Water Permeability and Chloride

    basalt as concrete aggregate in Syria. This study is part of the first detailed research in Syria to investigate the potential utilization of basalt as concrete aggregate, and to study the effects of their use on the performance of concrete. The study is particularly important not only for the country but also for other areas of similar geology, e.g. Harrat Al-Shaam, a volcanic field covering

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  • EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON CONCRETE

    Darwin, Tholen, Idun, and Zuo (1995, 1996) observed that concretes containing basalt coarse aggregate exhibited higher bond strengths with reinforcing steel than concretes containing limestone. There is much controversy concerning the effects of coarse aggregate size on concrete, principally about the effects on fracture energy. Some research (Strange and Bryant 1979, Nallathambi,

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  • Microstructure analysis of hydraulic concrete using

    This paper presents an experimental study of the microstructure of concrete using crushed sands and river sand. Three sands with different geological nature have been investigated in this work. Sand from crushed basalt (SB), sand from crushed gneiss (SG) and sand from river Sanaga (SS) were used for the formulation of these concretes. The results of the analysis show that concrete made from

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  • Aggregates for Concrete Memphis

    Naturally occurring concrete aggregates are a mixture of rocks and minerals (see Table 5-1). A mineral is a natu-rally occurring solid substance with an orderly internal structure and a chemical composition that ranges within narrow limits. Rocks, which are classified as igneous, sedi-mentary, or metamorphic, depending on origin, are gener-ally composed of several minerals. For example

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