No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Many studies have been performed on the use of waste foundry sand in concrete and concrete related items such as replacement of aggregate (fine), and bricks, blocks, and paving stones.
Studies are needed to explore alternative materials that can be used in lieu of natural aggregates. This study investigates the use of pulverized crab shell (PCS) for partial replacement of sand in concrete mixture. The properties of conventional concrete mix are compared with concrete mix with its sand replaced with 10% and 15% PCS.
Al-Harthy [11] used different percentages (10 %–100 %) of dune sand in concrete to study the workability and the mechanical properties. The experimental results showed improvement in the workability of concrete, while the compressive strength exhibited good values up to 50 % percentage of dune sand. To ensure concrete of good strength and ...
In th at study, SCGs were used as a fine aggregate to replace sand in dune sand concrete mix es . The SCGs were mixed with sand, cement, fillers, water, and plasticizer to manufacture dune
Using 10% sand, 10% cement amalgam, and 20% MPW, Ashish's research on concrete mixtures with marble powder in place of cement and sand revealed that marble powder was a workable substitute 20,21.
1. Introduction. Concrete is commonly used in civil engineering material. For better understanding of concrete, many researchers are devoted to studying the properties of concrete materials and concrete structures [1 – 5].For four-component ordinary concrete, fine aggregate and coarse aggregate account for 70% to 80% of the volume of concrete [], which plays the role of …
As Chinese development of marine resources intensifies in recent years, more and more offshore platforms and buildings, island structures are under construction. However, concrete aggregate and freshwater resources which are used to mix concrete are usually limited in coastal areas or on the islands. This paper concentrates on marine sand and seawater …
Results demonstrated that SCC with 50 (%) sea sand and 50 (%) manufactured sand achieved superior 90 (^ {th}) day compressive strength. This …
In this context, a purely experimental study was conducted to investigate the physical and mechanical properties of fresh and hardened concrete at different curing times (3, 7 and 28 days) using ...
It compiles and analyzes data on how different WFS ratios affect concrete's mechanical properties, including modulus of elasticity and compressive strength. The review also …
Made with S awdust Replacement of Sand: C ase Study of Adama, Ethiopia, International Journal of Engi neering, Transactions C: Aspects, Vol. 35, No. 06, (2022) 1119-1126 International Journal of ...
In the present investigation workability, strength and durability of concrete with manufactured sand as replacement to natural sand in proportions of 0%, 20%, 40%, 60% and is studied.
Results showed that dolomitic limestone powder can substitute cement by 16% by weight, using a concrete mix of 523-g cement, 936-g sand, 1,868-g gravel, 100-g dolomitic limestone powder, and 166-g ...
Generally, the construction industry uses natural sand or crushed sand or a mixture. According to the literature, concrete is made from river sands and crushed and of ...
This study establishes a foundation for the effective utilization of seawater and sea sand in concrete, contributing to sustainable development, carbon emission reduction, and the …
This step-by-step particle grading ensures optimal working performance and mechanical properties of the concrete mix. This study demonstrates that incorporating a portion of iron tailing sand into mechanism sand and optimizing the aggregate gradation not only enhances the fresh mix state of concrete, but also significantly improves its ...
The sand that will be used to make concrete must be free of any chemicals, salt, clay, silt, and dust, and it must entirely pass through an IS sieve with a 4.75 mm size and be totally …
This study provides an effective method for the automated detection of sand grain size gradation between 0.075 and 4.75 mm, which can significantly increase the frequency of …
Manufactured sand (M-Sand) is a substitute of river sand for concrete construction . Manufactured sand is produced from hard granite stone by crushing. The crushed sand is of cubical shape with grounded edges, washed and graded to as a construction material. The size of manufactured sand (M-Sand) is less than 4.75mm. Why Manufactured Sand is Used?
In this study, Ordinary Portland cement Grade 53 from UltraTech Cement Pvt. Ltd., conforming to (IS 12269, (IS:12269()Specification for OPC-53 grade cement Bureau of indian standard New Delhi. 1987) specifications was used.The physical and chemical properties of cement and marble dust used are presented in Table 1.The locally sourced fine aggregates …
The study encompasses the optimization of concrete mix proportions by considering the varying levels of copper slag content (20%, 30%, and 40%), water-cement ratio (0.35, …
The main objective of this research is to investigate experimentally the effect of crushed and uncrushed coarse aggregate on the properties of hardened concrete (compressive strength) by adopting the American Concrete Institute (ACI) and the British Department of Environment (DoE) methods. Concrete mixes were designed, concrete cubes and cylinders …
Treated Sea Sand (TSS) 25–100: Concrete with treated sea sand has a strength increase of 6.71% due to micro-organic matter and chloride removal. [15] Crumb Rubber (CR) 5–20: Treated rubber increased its compressive strength due to surface modification of fine aggregate, resulting in increased binding between rubber and cement paste. [16]
1. Introduction. Sand has become an essential natural resource consumed widely as construction materials, mainly in concrete and mortar [1], [2].The sand demand in the construction industry has increased globally due to higher living standards and urban expansion [3], [4].The river sand, which makes up around 2/3rd volume of the concrete, seriously …
Concrete mix ratio: The strength of concrete mixture depends on the ratio in which these four ingredients are mixed. Concrete mix ratio of 1:3:3 - On mixing 1 part cement, 3 parts sand with 3 parts aggregate produces concrete with a compressive strength of 3000 psi.
A total of 4 class of cube specimen were prepared for this study, such as PC, CC1, CC2, and CC3, where PC denotes plain concrete with 0% replacement, CC1 denotes replacement of cement and sand with 15% GGBS and 10% ROBO sand, respectively, CC2 denotes replacement of cement and sand with 15% GGBS and 20% ROBO sand, …
Given this, the present study observed the test of three diferent proportions of replacement, 25, 50, and by mass, of natural sand by WFS in concrete. To assess the. feasibility of these …
Detailedly, the ordinary concrete is totally destroyed when impact velocity is 10 m/s, but the desert sand concrete still maintains the cone shape at impact velocity of 18 m/s, which indicates ...
This comprehensive study undertaken to investigate the properties and performance of M60 grade self-compacting and self-curing concrete mix designs.
Seawater and sea sand concrete (No. 2) were produced by mixing seawater and sea sand. The study used Ordinary Portland Cement (OPC), Silica Fume (SF) 33,34,35, and Fly Ash (FA) as binding materials.
