The study was carried out on M20 grade concrete with 0.5 water cement ratio. Quarry dust can be used as fine aggregate, but it has to satisfy the technical requisites like workability and strength. Concrete mixes were tested for compressive strength and split tensile strength of concrete replaced by quarry dust was compared.
aggregate by quarry dust and water cement ratio (w/c) is taken as 0.45. Test results gives clear picture that the compressive strength of recycled concrete up to 30% coarse aggregate replacement by demolished waste with 20% fine aggregates replacement by quarry dust is the optimum quantity used for construction work..
Abstract. The production of aggregate for use in concrete production yielded a significant amount of fines fraction during the crushing operation at the quarry. The fines fraction, also widely known as quarry dust (QD), poses environmental risks such as land and air pollution in the absence of a proper disposal channel.
Concrete mechanical properties could be improved through adding different materials at the mixing stage. Quarry dust (QD) is the waste produced by manufactured sand machines and comprise approximately 30–40% of the total quantity of QD generated. When it dries, it transforms into a fine dust that poses a tremendous hazard to the …
It discusses how quarry dust, a byproduct of quarrying, can be used to replace fine aggregate in concrete and help increase strength while reducing costs. Metakaolin, produced from heating kaolin clay, is an effective pozzolan that can replace cement in concrete and increase compressive, tensile and flexural strength when used …
The choice of quarry dust as replacement for sand has been supported in the previous study (Manassa, 2010) showing that up to 20% of sand has been effectively replaced by quarry dust in traditional concrete. Ilangovan et al. (2008) reported that the strength of quarry rock dust concrete was comparably 10-12% more
For this concrete mix, quarry dust is added for replacement of sand at 0% to in step of 10%. B. Casting of specimen As the aggregate of size less than 20 mm and greater than 12.5 mm are used, cubes mould of 150x150x150 mm are used. Cylindrical moulds of size 150 mm diameter and 300 mm height are used for casting specimen for split tensile ...
-The reduction in the sources of natural sand and the requirement for reduction in the cost of concrete production has resulted in the increased need to identify substitute material to sand as fine aggregates in the production of concretes especially in Concrete. Quarry dust, a by-product from the crushing process during quarrying activities is one of such …
natural sand is as expensive as manufactured one, manufactured sand concrete mix is a viable and better alternative to the use of natural sand. Keywords: M-Sand, Concrete, Coarse Aggregates, Fine Aggregates 1. Introduction Concrete is the most widely used man-made construction material all around the globe because of its
Objectives: In the present study, by-product of stone crushed, quarry dust is replaced as a fine aggregate with 20%, 30%, 40%, 50% replacement.Methods/Analysis: The fine aggregate is being replaced with fine aggregate and the compressive strength is determined for the concrete by testing the sample cube. The properties such as the specific gravity, …
Raman et al. studied the strength and durability properties of high-strength rice husk ash concrete incorporating quarry dust as a partial substitute for sand and suggested an optimum replacement level of 20%. Singh et al. suggested optimum replacement level for fine sand by granite dust is 25% for compressive strength and …
This experimental study presents the variation in the strength of concrete when replacing sand by quarry dust from 0% to in steps of 10%. M20 and M25 grades of concrete were taken for study … Expand. 59. PDF. Save. Behaviour of Concrete on Replacement of Sand with Quaries Stone Dust as Fine Aggregate.
Research were done to determine the optimum percentage of quarry dust in concrete. The result shows that 25% of quarry dust and 75% of cement is the best percentage that can be used in concrete mixture to reach the standard strength. From an economic point of view, the proposed optimum concrete mix was found to be the most …
Anzar Hamid Mir et.al., "Improved Concrete Pro perties Using Quarry Dust as Rep lacement for Natural Sand", I nternational Journal of Engineering Research and Development, Vol. 11, issue 03 ...
In this context, the paper reviews the strategies proposed in the use of limestone fine waste, especially for concrete, and discusses an experimental program intended to assess the mechanical properties of concrete made with the fine limestone waste produced in the area of Trapani, as a partial substitute of fine aggregate (sand).
The conclusion could be drawn as follow: The maximum percentage of stone dust to replace sand in concrete mixture for both normal and high strength concrete is 60 %. The strengths of concrete with 60% stone dust at age 28-days are 38.756 MPa and 72.489 MPa for normal and high strength concrete respectively.
Quarry dust can be used as. an admixture in concrete efficiently to lessen its impact on. environment and human. It can also be used as partial. replacement of cement in concrete. Cement can be ...
The study was carried out on M20 grade concrete with 0.5 water cement ratio. Quarry dust can be used as fine aggregate, but it has to satisfy the technical requisites like workability and strength. Concrete mixes were tested for compressive strength and split tensile strength of concrete replaced by quarry dust was compared.
Stone dust, also known as rock dust or quarry dust, is a byproduct of crushing rocks during quarrying activities. It consists of finely crushed particles, often resembling sand but with distinct properties. ... In concrete applications, the coarse grains of sand contribute to the cohesion of the mix. This cohesion enhances the overall …
Crushing Machines. Using crushing machines at construction sites to reduce the size of large rocks, concrete, or construction rubble can generate respirable crystalline silica dust. When inhaled, the small particles of silica can irreversibly damage the lungs. This fact sheet describes dust controls that can be used to minimize the amount of ...
by quarry dust up to 30% found to improve the properties of concrete as reported by that the compressive and flexural strength of concrete with quarry dust were nearly 40% more than the control concrete. Mir and Shubhada,. Investigated the Quarry dust has also utilisation in other areas of application. Quarry dust with
Nine concrete mixes were prepared with Marble Powder and Quarry Dust as sand replacement materials (12.5%, 25%, 50% separately, and 25%, 50% combined). The effect of the replacements on workability, tensile, compressive and flexural strengths and cost were studied. Marble Powder negatively affected the workability while Quarry Dust …
Therefore, water to cement ratio was increased for concrete with quarry dust to sustain similar workability of conventional concrete [31,32]. On the other hand, the presence of quarry dust improved the mechanical characteristics and durability aspects of the concrete [29,33]. Quarry dust was also used in self-compacting concrete.
The targeted improvement was to achieve minimum acceptable characteristics for road subgrade as per Tanzania standards. It was determined that 40% by weight of quarry dust added to the black cotton soil was able to improve the characteristics by increasing CBR value from 3.8 to 15.7 and reducing PI from 32% to 15%.
Abstract- This experimental study presents the variation in the strength of concrete when replacing sand by quarry dust from 0% to in steps of 10%. M20 and M25 grades of concrete were taken for study keeping a constant slump of 60mm. The compressive strength of concrete cubes at the age of 7 and 28 days were obtained at room …
This study experimentally investigates the partial replacement of fine aggregate with quarry dust and saw dust in concrete. Concrete cubes were cast with fine aggregate replaced by 0-40% quarry dust and 0-20% saw dust. The compressive strength and split tensile strength of the cubes were tested after 28 days of curing. The results showed …
Objectives: In the present study, by-product of stone crushed, quarry dust is replaced as a fine aggregate with 20%, 30%, 40%, 50% replacement. Methods/Analysis: The fine aggregate is being replaced with fine aggregate and the compressive strength is determined for the concrete by testing the sample cube. The properties such as the …
In order to conserve natural sand, quarry dust (QD) as a waste and sustainable material has been incorporated to replace fine aggregate in SCC. In this study, conventional concrete and quarry dust in self-compacting concrete (QDSCC) mixes consist of 0%, 10%, 20%, 30%, 40% and 50% QD were prepared. The workability test …
After performing all the necessary tests, it can be readily inferred that the sample consisting of 50% Fly Ash, 40% Quarry Dust, 10% Cement & 15% GGBS shows the highest value of the compressive strength among all the bricks i.e., 15.42 MPa (at 28 days of testing) and in case of Water absorption, it was observed that the least water …
The results of the review showed that, (i) with appropriate mix design, wood waste, either in the form of saw dust ash, or wood aggregate, or saw dust; can be incorporated into the concrete mix to ...
The effects of metakaolin and quarry dust in fly ash based self-compacting concrete on the flexural strength are shown in Table 6 and Fig. 3. The flexural strength is 5.7 N/mm 2 for 25% replacement of fine aggregate by quarry dust.
Eight concrete mixes were produced with different levels of sand replacement by either iron ore tailings or quarry dust, while the ninth mix of 100 % river sand served as the control. The highest 28-day compressive strength of 29.2 N/mm 2 was obtained by blending 75 % sand and 25 % quarry dust with cement, which was 7 % higher than the 28-day ...
