آخرین محصولات

Performance of Basalt Fibre Reinforced High Density …

So, it satisfies as per IS code. Pycnometer is used to find specific gravity of aggregates. Specific gravity of hematite fine aggregate obtained is 3.53 and that of coarse aggregate is 3.9 and 3.83 for 20 and 12.5 mm size. As per IS 2386, the specific gravity should be in between 3.6 to 4.0 for coarse and 3.5 to 3.8 for fine aggregate.

Engineering properties of basalt aggregates in terms of use …

In the mixtures, basalt was used as coarse aggregate, while different combinations of basalt and limestone were used as fine aggregates and filler. As a result, it was determined that limestone could be used as a fine aggregate together with basalt in …

ANALYSIS OF USE OF BASALT AGGREGATE IN CONCRETE MIXES WITH …

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, 9179357477

A Guide to Basalt: A Common, Fine-grained, Dark …

Construction: Basalt is preferred for making aggregate or gravel for concrete and asphalt pavement. Also, it is ideal for road bases, railroad ballast, etc. Similarly, basalt sand and fines have various uses.

Effect of coarse basalt aggregates on the properties of …

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. ...

Influence of Coarse Aggregate Size and Type on the Design …

Coarse aggregates (CA) Two types of CA, granite and basalt are used to prepare the PQC mix in the present study. Granitic aggregates are derived from intrusive igneous rocks and are composed predominantly of silica. The grain or texture varies from fine to coarse. Granitic aggregates are more abrasion resistant and hard to break.

Basalt Aggregate as Coarse Aggregate in High …

In this paper, the crashed Basalt and uncrushed granite is used in concrete mixes as coarse aggregate. The selected materials, with high specification using special production techniques, the properties,the mix design …

MECHANICAL PROPERTIES OF BASALT AGGREGATES …

consists of 50% coarse aggregate and 50% fine aggregate in weight. The selected aggregate gradation was in accordance with the General Directory of Turkish Highway (GDTH) recommended gradation for granular base layers. ... Freeze–thaw is one of the major problems in the region where the basalt aggregates are used. As seen in Fig.3, …

A Guide to Basalt: A Common, Fine-grained, Dark-Colored …

Basalt is a common and widely used, fine-grained, dark-colored mafic volcanic rock. ... Coarse-grained or intrusive equivalent: Gabbro, However, gabbro has a highly variable mineral content. ... Construction: Basalt is preferred for making aggregate or gravel for concrete and asphalt pavement. Also, it is ideal for road bases, railroad …

Types, Sources, and Physical Properties of Coarse Aggregate

It is obvious from Table 1 0 that among the types of coarse aggregate used, the concrete made with ... followed by dolomite and gravel. The con- crete mixtures made with diabase, basalt, and ...

Classification of Aggregates as per Size and Shape -Coarse …

The size of aggregate used may be related to the mix proportions, ... and clay is termed as loam. The purpose of the fine aggregate is to fill the voids in the coarse aggregate and to act as a workability agent. Fine aggregate: Size variation: Coarse Sand. 2.0mm – 0.5mm. Medium sand. 0.5mm – 0.25mm. Fine sand. 0.25mm – 0.06mm. Silt. 0 ...

Experimental Study on the Use of Basalt Aggregate in …

dried in the sunlight before its use. Coarse aggregates lime stone and basalt of two fractions with specific gravities 2.7 and 2.83 respectively were used. Fraction-I was obtained by passing through 25mm and retained on 20 mm IS sieve and was taken at 60% of the total coarse aggregates content. ...

The Use of Basalt-Hamadallah Al-Baijat

The Use of Basalt Aggregates in Concrete Mixes in Jordan Hamadallah Mohammad Al-Baijat 1) 1) Department of Civil Engineering, Faculty of Engineering, ... Basalt (Fine) Basalt (Coarse) Limestone (Fine) Limestone (Coarse) Specific Gravity (Apparent) 2.943 2.917 2.673 2.626 Specific Gravity (SSD) 2.843 2.814 2.605 2.552

Performance of Recycled Coarse Aggregate Concretes with Basalt …

Coarse aggregates of 20 mm down and retained on 10 mm with specific gravity of 2.7, satisfying IS 383-1970 grading requirement was used. The specific gravity and density of cement, fine aggregate and coarse aggregates are tabulated in Table 1. The properties of basalt fibers used in this study are shown in Table 2.

Use of basalt in asphalt concrete mixes

In this research, the possibility of improving the properties of local asphalt concrete mixes by replacing different portions of the normally used limestone aggregate by basalt was investigated. The replacement included total replacement of the limestone by basalt, replacing the coarse aggregate, and replacing the fine aggregate.

Sustainability | Free Full-Text | Bond Behavior of Basalt Fiber

This study is an experimental investigation of the bond stress–slip behavior of BFRP bars in recycled coarse aggregate concrete using the pull-out experiment. The experimental program contains twenty-three BFRP specimens and twelve specimens with GFRP bars. The pull-out test results of the BFRP and GFRP specimens in recycled …

EFFICACY OF BASALT AND GRANITE AS COARSE …

EFFICACY OF BASALT AND GRANITE AS COARSE. https://doi/10.29121/ Technologies September and Management 2020, .v7.i9 Vol 7(09), Research. …

Mechanical and stress-strain behavior of basalt fiber …

The results indicate that the effects of recycled coarse aggregates, rubber particles and basalt fibers on the properties of concrete are significant. Compared with normal concrete, rubberized recycled concrete with 10% rubber particles and 40% recycled coarse aggregates has lower strength and better deformation performance.

Chemical aspects of the application of basalt in cement …

In its natural state, depending on its grain size, it can play a role of a pozzolanic active component or coarse aggregate. Basalt can also be used as concrete reinforcing material of different shapes and sizes, such as fibers, ropes, fabrics, or rods/bars. This Section summarizes the current state of research on the application of …

ANALYSIS OF USE OF BASALT AGGREGATE IN CONCRETE MIXES WITH …

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. ... in the field and skilled labour is required for the …

Proposed models for concrete thermal expansion with different aggregate

Aggregates represent more than 70% of concrete volume. Two-third of the aggregate is composed of coarse aggregates [].As a result, coarse aggregate plays an important role in determining the CTE of concrete [].In this paper coarse aggregate is given special attention as it has a significant effect in determining the concrete CTE.

EFFICACY OF BASALT AND GRANITE AS COARSE AGGREGATE IN CONCRETE MIXTURE

Limestone was used as coarse aggregate in the production of samples. The properties considered were the compressive strength, resistance to abrasion, freeze-thaw property, capillary water permeability and sulfate resistance. ... Table 1: Specific Gravity Material River Fine Coarse Aggregate (Basalt) Coarse Aggregate (Granite) Specific Gravity ...

Porous recycled basalt aggregate for sustainable, …

Since sustainable and environmentally friendly structural concrete has received special attention, structural light-weight basalt concrete has gained popularity. However, it is rarely used in the construction industry domestically. Basic porous basalt aggregates, are introduced to replace acidic silica aggregates with control of shape, …

A study on Basalt Fiber Reinforced Concrete utilising …

According to the current study, clam seashells have been partially replaced for coarse aggregate. There is still a lack of exploration concerning its strength properties of concrete, when sea shell used as a replacement for coarse aggregate. Basalt Fiber has tangible malleable property; thus, it can be utilized as a fibre reinforcement material.

Dynamic Model of Polished Stone Value Attenuation in Coarse Aggregate

The PSVs of four types of coarse aggregates (calcined bauxite, granite, basalt, and limestone) were analyzed through a polishing experiment, and the corresponding mechanism was investigated via ...

Experimental Study on the Use of Basalt …

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...

Basalt: Igneous Rock

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 …

Improving bond strength of recycled coarse aggregate …

Fine aggregate used in this study was natural sand with a fine modulus of 1.27. The types of coarse aggregates used were NA and RCA. The coarse NA was crushed limestone with sieve size ranges between 5 and 22.5 mm. The grading of the NA is shown in Table 1. The RCA was attained by crushing old concrete specimens that …

Effect of Coarse Aggregate Characteristics on Skid …

This study determined the effect of coarse aggregate types and nominal maximum aggregate size (NMAS) on the skid resistance deterioration of an UTWC. Different types of stone mastic asphalt (SMA), which are used in three kinds of coarse aggregates (diabase, limestone, and basalt) and three kinds of NMAS coarse aggregate (SMA-5, SMA-8, …

EFFICACY OF BASALT AND GRANITE AS COARSE AGGREGATE …

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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