Reactive powder based concretes: Mechanical properties, durability and

The addition of 20 and 30% of steel fibers (mixes F26/022/F and F26/022/2/F, respectively) did not worsen the rheological properties of the UHS mortars. However, in the case of the UHS concretes the presence of only 10% of steel fibers (mix F26/023/G/F) caused a decrease of the maximum flow below 770 mm and increased the T 50 time to 6–8 s ...

sbm/sbm amount of sand and steel in concretes price.md …

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How to calculate Cement, sand and metal in …

The mix ratio specifies the amount of cement, sand, and metal that needs to be mixed to obtain the desired strength and workability of the concrete. The most common mix ratio used for making concrete is 1:2:3, which means …

Evaluation on steel corrosion risk of seawater sea sand …

Seawater typically contains approximately 20,000 mg/l of chloride, and sea sand has around 0.082% chloride content by mass, posing a substantial threat to steel corrosion in concrete structures [10].There are some researchers [11] who try to use corrosion inhibitor to protect steel rebar from corrosion in marine environment. In addition, other researchers [12] …

EFFECT OF USING STEEL SLAG AGGREGATE ON …

concrete consists of sand as fine aggregate and gravel, limestone or granite in various sizes and shapes as coarse aggregate. There is a growing interest in using waste ... Oxide (MgO) as well as a small amount of Sulfur (S) while steel making slag contains iron oxide (FeO) (Hansen, 1966).

Recycling of scale and steel chips waste as a partial …

In this research study, concretes were made with steel chips scale (ScC) and (SchC) as substitution for raw sand. Sand was replaced by these waste in different proportions (25%, 50%, 75%, and ) by weight of sand. ... the compressive strength is improved when steel slag is used for low sand replacement ratios (up to 30%). When optimum values ...

A Review of the Mechanical Properties and Durability of …

Jang et al. (2015) studied the strength properties of high-performance concretes (HPCs) with the fixed amount of silica fume of 5% and following curing temperatures of 5, −5 and −15 °C. The strength values gradually decreased with sinking temperatures, reaching 25.41 MPa, 23.76 MPa and 14.02 MPa after 28 days regardless of the addition of ...

Amount of sand and steel effect on the strength of concrete

Description: Concrete blocks were prepared with different amounts of sand and steel steel bars; after drying, the number of hits before a large crack appears in the top of the concrete block …

Effect of freezing–thawing cycles and high temperatures on concretes …

This study examines the effects of local industrial by-products, such as iron slag and steel slag, as partial replacements of fine grain at 10%, 15%, and 25%, individually and combined. The research evaluates the impact on mechanical resistance under freeze–thaw cycles and high temperatures. Additionally, the study explores the effects of incorporating 0.3% …

Review A comprehensive review on performance of …

Park and Lee (2004) proposed that the addition of 1.5% steel fibre in glass concrete significantly decreased the ASR expansion by 40%, in comparison to the concrete only containing glass sand. Also, it was found that curing temperature had considerable influences on …

Evaluation of the long-term performance of high …

To address these concerning problems, it is worth exploring and promoting sustainable alternatives such as sea sand, and crush sand concretes. Furthermore, industrial by-products like fly ash (FA), GGBFS, and silica fume ... NWS-C exhibited the largest amount of rusted steel and several cracks, especially at the bottom of concrete samples ...

Mechanical Properties of Ultra-High Performance Concrete …

All concretes in this work used recycled sand, RS, except for two reference concretes which used natural crushed sand, NS, in an effort to save on the consumption of natural resources. At the same time, relatively low amount of OPC (818–842 kg/m 3 ) was used for the mixes with RS while the OPC amount was a little higher for the reference ...

Recycling of scale and steel chips waste as a partial replacement …

Sand was replaced by these waste in different proportions (25%, 50%, 75%, and ) by weight of sand.The aim of this study is to investigate the compressive strength and absorption properties for ...

Enhancing concrete properties with steel waste: a

This critical review systematically explores the innovative utilization of ground granulated blast-furnace slag (GGBS), steel slag (SS), and other steel waste in concrete, addressing a crucial research gap in predicting concrete properties with these materials. By analyzing 97 publications, this review offers a comprehensive understanding of how these …

Use of Iron and Steel Slags in Concrete: State of the Art …

In the two last decades, world production of pig iron and steel has undergone a significant increase. In 2018, 1252.87 and 1806.46 million tons of pig iron and steel, respectively, were produced as compared to the 575.78 and 809.94 million tons of 2000. Consequently, the amount of the different types of slags deriving from these production processes has also …

Strength Properties of ed Concrete Containing Crushed Steel …

The amount of Steel slag consumed annually has been growing progressively in utilization. Consequently, slag waste usage has become one among the main challenges in recent times. ... (LFC), as one type of the lightweight concretes (LWC), is a mortar, in which artificial air voids are introduced by suitable ing agent [1]. LWC possess a ...

Environmental impact and life cycle assessment (LCA) of …

The amount of CO 2 released during the production and subsequent transport of concrete–sand was found to be 13.9 kg CO 2 equivalents/tonne. The production process included the strip-mining of raw sand by excavators, the subsequent loading into haulers, the washing into a pumpable slurry, the piping to the grading plant and the filtering into ...

Mechanical performance of steel and iron slag …

Concrete has the lowest embodied energy among all the building materials and is the most extensively used material for meeting the high global demand for infrastructure.

(PDF) Seawater-mixed concretes containing natural and sea sand …

lications related to seawater-sea sand mixed concretes (SW-SS). Several researchers have studied the effects of partial and full replacement of ne and coarse aggregates, derived from riverbeds and

(PDF) Comparison of properties of steel slag and crushed …

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How to Calculate Cement, Sand & Aggregate for Concrete …

A good-quality concrete mix can make your building strong and durable. You can do this by using the right amount of materials. This can give your concrete the strength it needs …

The Mechanical Effects of Recycled Steel Fiber on Concrete

The reason of this sharply decrease of slump value is, balling effect of the fibers and one of the main causes of the balling effect in fresh concrete was found to be inconsistent recycled steel fiber size and shape [].3.2 Compressive Strength Results. The results of the compressive strength tests performed on the produced specimens are given in Fig. 3.

How Much Sand and Gravel Should Be in a Yard of Concrete?

Calculating the exact amount of sand and gravel in one yard of concrete is crucial to avoid over or undermixing, which can lead to structural problems. You need to have a clear understanding of …

A review of recent advances in the science and …

Roman concretes and could help create more durable modern concretes. When comparing ancient and modern concretes, apart from the use of cement, another major difference is the use of steel reinforcement. Naturally, a major concern with the use of chloride-rich seawater in modern concrete is the potential for steel corrosion. The concentration

Direct tensile self-sensing and fracture energy of steel …

The self-sensing abilities of normal concrete and mortar dopted with carbon fibers have been early discovered since the 1990s by Chen and Chung [14, 15].After that, Chung [16] and Wen et al. [17] explored the self-sensing abilities of fiber-reinforced concretes.Freshly, the damage-sensing abilities of strain-hardeing cement based materials were also found with …

How To Calculate Quantities Of Cement, Sand, and Aggregate

1. Method 1: Calculating cement sand and coarse aggregate in volume and weight from Nominal Concrete Mix Ratio
2. Method 2: Calculating the weight of sand and aggregate needed per bag of cement (50kg bag) using Total weight of aggregate valuegiven in IS codebook