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In comparison to concrete made with river sand, the compressive strength increases at 7 days and is par for 14 and 28 days when using 50% FAGS as the replacement …
The suitability of Crushed granite fine (CGF) to replace river sand in concrete production for use in rigid pavement was investigated. Slump, compressive and indirect tensile strength tests were ...
The project deals with the study of durability condition of concrete. Natural sand is replaced by quarry dust with 0%, 10%, 20% and 30%, and in combination Natural sand is replaced by …
For sand having above 3.4% of clay content used in a 1:1: 2 (M-25) mix of concrete resulted in the production of concrete with compressive strength less than 25 N/mm2.Therefore, this work was ...
Another study collected sand from ten different locations of Chittagong to produce concrete cubes for testing compressive strength [7]. Among these cited works, two previous research work [6] [7 ...
The results of the analysis show that concrete made from alluvial sand (BSS) has very good compressive strength (33.72 MPa at 28 days) followed by concrete made with crushed basalt (BSB), (33.59 ...
In this study, replacement of sea sand instead of river sand as 20%, 30%, 40% and 50% respectively as partial replacement for fine aggregate. Analysis of the parameters such as compressive strength, water absorption were …
Suresh and Nagaraju conducted tests on compressive strength of concrete with partial replacement of sand with ground granulated blast furnace slag (GGBS) (Suresh and Nagaraju 2015). It has been observed that the maximum of studies is conducted by replacing any one of the ingredients of cement or sand with a single material.
least compressive strength was achieved with concrete produced with badagry dredged river sand with compressive strength of 25.39N/mm2 Keywords: Sand, Concrete, Compressive strength INTRODUCTION Sand is a naturally occurring granular material composed of finely …
Concrete has become the prevalent building material in modern society due to its affordability, ease of casting, and substantial compressive strength after hardening 1.In …
lower compressive strength in relation to concrete with river sand using the same mix ratio. Also it may consume more cement than fine aggregate (ACI, 1999). Table 1. Some Physical Properties of the Fine Aggregates and Crushed Cow Bone Properties CCB Aggregate River Sand Bulk Density (Kg/m3) 20.5 58.16 Specific Gravity (SSD) 1.67 2.63
tensile and flexural strength of conventional ( river sand) concrete. Table 2. Compressive strength of concrete ( river sand) Table 3. Splittensile strength of concrete ( river sand) Grade of concrete
on strength and durability of concrete using dredged sea sand as partial replacement of M-sand. The strength study proves that about 40% replacement will not affect the overall strength of concrete. Key words: Dredged sea sand, Strength, Durability, M-sand, 1. INTRODUCTION Concrete is the basic construction material used in the
Concrete is a major construction material used in the construction now a days. It is a composite material containing cement, fine aggregate, coarse aggregate and water. Fine aggregate is required in large quantities for manufacturing of concrete. Generally river sand is used as a fine aggregate. Due to increase in the utilization of concrete in construction sector, the need for …
Block manufacturers in Nigeria are faced with the problem of mix proportioning to meet the compressive strength and water absorption requirements. This paper developed new models for predicting the 28 th day compressive strength and water absorption of sand-quarry dust blocks using Osadebe's regression model which expresses the response as a function of …
To study the influence of sea sand on the Compressive strength in development of concrete and compare the result with that of concrete produced using river sand. To provide information on sea sand, cement, aggregates and mix design processes. To examine the suitability of sea sand as fine aggregate in concrete. 4.
2.3 Overall results of compressive strength of concrete by partial replacement with manufactured sand. Table -3: Compressive strength for 7 days Description of the mix Compressive strength % increase or decrease of Compressive strength with respect to reference mix Reference mix (R) 10.60 - 20% 11.73 +10.66% 40% 14.96 +41.13%
This study was conducted to investigate the effectiveness of concrete using sawdust to partially replace the river sand which could reduce both environmental problems and construction cost. In this study, sawdust concrete has been produced where the river sand is replaced with sawdust by 5%, 10% and 15% of the total sand volume.
As a partial substitute for river sand, the workability declines as the WFS content increases (Prabhu et al., 2014, Prasad et al., 2018). Few researches looked at the physical characteristics of concrete using clay-bonded WFS to see if river sand could be replaced in concrete (Kavitha et al., 2020, Prabhu et al., 2014, Siddique et al., 2015).
Keyword: Aggregate, compressive strength, split tensile strength concrete, cost, manufactured sand, workability. CHAPTER 1 INTRODUCTION 1.1 GENERAL Sand is used as fine aggregate in concrete. Natural river sand is the most preferred choice as a fine aggregate material. River sand is a product of natural weathering of
Concrete mixes with 7.5%, 10% and 15% granite dust as cement replacement recorded 5.5%, 11.5%, and 8.2% reduction in compressive strength at the age of 56 days. The reduced cement content might be the reason behind the reduction in compressive strength. The concrete's compressive strength showed increment up to 10% addition of granite dust.
The experimental test results have revealed that it is possible to obtain a normal and high strength concrete with acceptable compressive and flexural strengths values by using river sand with ...
The concrete mix ratio of 1:2:4. was prepared using water/cement of 0.65 with 0%, 25%, 50%, 75% and sawdust as partial replacement for fine sand.
This Increasing of the compressive strength of concrete was 12.6% at 7 days and 0.22% at 28 days. In addition, the use of river sand in concretes based on sand …
In addition, for the best mechanical properties of concrete, with w/c ratio in the range of 0.36 to 0.45, it is suitable to use up to 65% of crushed sand as partial replacement of river sand.
50% quarry dust content resulted to optimum compressive strength of concrete for several mix ratios and water/cement ratios [11-16]. Researchers have also used quarry dust as total …
Then, later the compressive strength of concrete with full replacement of river sand with ASFA at an age of 7, 14 and 28 days with variation of cement brands were tested. The following tables and graphs illustrate the compressive strength of …
The results obtained from compressive strength testing are presented in Table 1. Table 1 Compressive Strength (Nmm-2) It is seen from Table 1 that for the control mix, the compressive strength of concrete increased from 23.36Nmm-2 at 7days to 28.64 Nmm-2 at 28days.The compressive strength at 25% replacement increased from 9.54 Nmm-2 at
Concrete sand plays a pivotal role in enhancing the durability of concrete structures. Its specific composition, featuring a balance of coarse and fine grains, is key to minimizing the likelihood of cracks. The angular shape of …
Split tensile strength, compressive strength test and flexural strength were conducted in accordance to the existing standard. Results show maximum of 20% replacement levels of sand by laterite attained workable concrete with satisfactory strength beyond that lateritic concrete is not workable And 40% replacement of sand by manufactured sand ...