Concrete is a composite building material made from a combination of aggregate (fine and coarse), water, and binder, namely cement [1]. The cement commonly used is Portland cement, consisting of ...

Size of Fine Aggregate Is. The size of fine aggregates is defined as 4.75mm or smaller. That is, aggregates which can be passed through a number 4 sieve, with a mesh size of 4.75mm. Fine aggregates include things such as sand, silt and clay. Crushed stone and crushed gravel might also fall under this category.

Using steel slag as a cementing material and fine aggregate in concrete is feasible. Steel slag powder contains f-CaO, active RO phase and other components, which will produce volume expansion in the process of a hydration reaction [ 9, 16, 17, 18 ], thus compensating the shrinkage of concrete and reducing or even replacing the use of an ...

The concern about coconut shell disposal and natural fine aggregate depletion has prompted researchers to utilize coconut shell as aggregate in recent years. However, the majority of the present literature has focused on utilizing coconut shell as a coarse aggregate replacement in concrete via the traditional method. In this study, …

Following that, the influence of the fine aggregate's grading on mortar's rheology was quantitatively analysed using the Cu parameter, and it was found that the higher the Cu value, the lower ...

water, fine aggregate (FA), coarse aggregate (CA) quantity and density. The data of mix and testing results pertaining to the various grades of concrete ranging in specified strength ( ′) 17.5 to 60MPa are summarized in the table below as well as the correlation of the independent variables to the 28 day compressive strength. Table 1.

The fine aggregate is river sand with a specific gravity of 2.62 and a water absorption of 0.76%. Limestone dust used as a replacement for fine aggregate had a specific gravity of 2.57 and an absorption rate of 1%; it was similar to quarry dust, which had a specific gravity of 2.58 and an absorption rate of 1.10%.

A Response Surface Model for the compressive strength of concrete was formulated for estimating the concrete strength at a given percent substitution of the fine aggregate …

The use of nanomaterials improves the performance of reinforced concrete (RC) beams in terms of cracking load, failure load, and deflection. To further evaluate this improvement, the behavior of RC …

Fine Aggregate Gradation • Fineness Modulus (FM) should be between 2.3 and 3.1 Sieve Percent Passing ASTM C 33 Grading for Fine Agg • FM is empirical # determined by dividing the sum of percent retained on a standard series of sieves by 100 (No. 4, 8, 16, 30, 50, 3/8 in 100 No. 4 95-100 No. 8 80-100 No. 16 50-85 100) • Coarser fine aggregate

To study the durability of concrete with fly ash as fine aggregate under alternate freeze-thaw and carbonation, freeze-thaw and carbonation cyclic tests are conducted to explore variation characteristics such as relative dynamic modulus of elasticity and neutralisation depth. The influence coefficient ( λ C ) of carbonation on concrete …

The addition of 0.3% PET fiber can effectively increase the flexural strength of coal gangue fine aggregate concrete, which is 6.7% higher than that of CGC-5. However, when the fiber content increased from 0.3% to 0.5%, the compressive strength of concrete was reduced by about 8.1% compared with that of CGC-5.

The increasing volume of waste and the requirements of sustainable development are the reasons for the research on new waste management concepts. The research results presented in this paper show the effect of recycled aggregate on the selected properties of cement concrete. The aggregates obtained from three types of …

The fine aggregate matrix (FAM) is an important constituent of an asphalt concrete mixture; the FAM is where some key damage phenomena such as cracking start and propagate. The proper design and fabrication of isolated FAM testing samples that are representative of the material existing within asphalt concrete mixtures requires the …

It is found that the compressive and flexural strengths of concrete increase on use of stone dust. The replacement level of the fine aggregate (30, 40, 50, 60 and …

The fine particles attached on the surface of the recycled concrete aggregate increased the water absorption capacity of recycled fine aggregate and also had a lower density than natural aggregate …

The optimum fine aggregate replacement is about 20–30% and it depends more on rock dust fineness than its geological origin. With such a substitution level, an …

They found that the addition of 7–10% of mineral filler to fine aggregate (0–2 mm) considerably improved the mechanical properties of concrete and decreased its permeability. Aliabdo et al. studied the utilization of waste marble dust in cement and concrete production. They added the marble dust with 0.0%, 5.0%, 7.5%, 10.0%, and …

This study aimed to analyze the mechanical, displacement, and strain properties of concrete with Ferronickel Slag (FNS) fine aggregate substitute (0%, 50%, and 100%, by mass, later called FNS-0, FNS-50, and FNS-100, respectively) experimentally using the Digital Image Correlation (DIC) method and the Ultrasonic Pulse Velocity …

In Australia, natural sands are depleting. New deposits are difficult to establish due to environmental and regulatory factors. The decreased availability of natural sand has required higher utilisation of fines resulting from the rock crushing process to produce coarse aggregate products. These fine materials – manufactured sands – are …

The paper describes the mechanical behavior of fine recycled concrete aggregate (FRCA) concrete according to the mineral admixtures. Three types of the mineral admixtures, i.e., fly ash (FA), ground-granulated blast-furnace slag (GGBS), and silica fume (SF), are used and the replacement ratios of FRCA are 50% and 100%. The dosages of …

The fine aggregate has a specific gravity of 2.56 and a fineness modulus of 2.42 of natural sand. The used waste tires' rubber-particles, as a replacement for fine aggregate in this study, were manufactured from automobile tires by mechanical shredding. The used rubber particle has an average of 1.0 mm in size, and has a specific gravity of …

The flexural strength of concrete is affected when PET is added or replaced. When replacing fine aggregate with only 5% PET with a w/c ratio between 0.5 and 0.6.5, it can increase flexural strength by 6–8%. In contrast, replacing fine aggregate with 15% PET can reduce flexural strength by 6–14%, depending on the w/c ratio .

Asphalt fine aggregate matrix (FAM) consists of a binder, fine aggregate, filler, and air voids. Studies on FAM, which is one scale smaller than asphalt concrete (AC), have been gaining attention among researchers because of its considerable similarities with AC and increased testing efficiency it provides. FAM tests are mostly performed to …

Aggregates solutions available at Holcim can be divided into two main categories: Primary natural aggregates, extracted from hard rock quarries and deposits of sand and gravel. Alternative aggregates, consisting of recycled concrete and secondary aggregates from other industrial waste such as mining waste, slag and ash.

Therefore, this research study aims to investigate the influence of Treated recycled fine aggregate (TRFA) on the flow and strength property of mortar over …

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Quality of Fine Aggregate for Concrete and Asphalt c. A. ROGERS, M. L. BAILEY, AND B. PRICE The sulfate soundness test has been used for many years for evaluating the physical suitability of fine aggregate. This test suf­ fers from poor within-laboratory and multilaboratory precision; it is a time-consuming and expensive test.

Abstract. Recycled fine concrete aggregates (RFA) are not enough used in the construction sector, mainly because of their high water absorption capacity. These …

Nowadays, the re-use and recycling of industrial wastes to reduce the environmental impact and landfill problems are the main concerns of researchers. Plastics are one of the main waste materials worldwide, with considerable impacts on health and environmental conditions. Recycling plastic wastes in the concrete industry is one of the …

In the study of Poloju et al (2017), the IAPST score of the fine aggregate was identified by following the testing procedure stated in ASTM D3398-97. The test involves filling a mould with the ...

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TS-1c T 304-5 AASHTO 6.4. Glass Plate—A square glass plate approximately 60 mm by 60 mm with a minimum 4-mm thickness used to calibrate the cylindrical measure. 6.5. Pan—A flat metal or plastic pan of sufficient size to contain the funnel stand and to prevent loss of material. The purpose of the pan is to catch and retain fine aggregate particles that …

Sand is often utilized as a fine aggregate in concrete, contributing 22 to 62% of the total mass. The quantity and features of sand in concrete have an impact on its workability, mechanical characteristics, and durability. Effective replacements are needed as natural silica sand becomes scarcer. By incorporating these by-products into concrete, …

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This work aimed to utilize crumb rubber (CR) from waste tires as a partial replacement of fine aggregate at 15%, 22.25%, and 30% by volume, and high-volume fly ash (HVFA) replacement of cement at ...

Fine Aggregate (FA) Coarse Aggregate (CA) 1. Definition. Fine aggregates are small-size filler materials in construction. Coarse aggregates are larger-size filler materials in construction. 2. Size of Particles. Fine aggregates are the particles that pass through a 4.75 mm sieve and retain on a 0.075 mm sieve.