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  • COMPRESSIVE STRENGTH OF CONCRETE USING

    Various results obtained from our study are summarised (tabulated) as follows: DISCUSSIONFrom those above results concrete made from natural aggregates has higher compressive strength than the concrete made by using crushed rock aggregates (at same workability of 75 mm) by 9% in case of M15 grade and 6.7% in case of M20 grade .

  • Compressive Strength of Concrete Using Sawdust as

    2016-9-9 · compressive strength were 57.5%, 68.1%, 83.7%,and 87.3% respectively. The results of the study indicate that both the density and compressive strength of concrete decreased as the percentage replacement increased but replacement of sand by sawdust produced a higher percentage reduction in compressive strength than in density.

  • Effects of Water-Reducing Admixture on the Compressive

    Compressive Strength of Concrete Using Crushed Mangima Stone as Fine Aggregate Jonathan B. Calibara* and Ruel R. Cabahug College of Engineering and Architecture University of Science and Technology of Southern Philippines Cagayan de Oro Cagayan de Oro City, 9000 Philippines *[email protected] Date received: March 13, 2020

  • Compressive Strength of Concrete Using Recycled

    attained the highest compressive strength, followed by 1:11/ 2:3, 1:2:4 and 1:3:6 mixes. Table 5 shows the relative strength of RA concrete. The value is the compressive strength of RA concrete expressed as a percentage of the compressive strength of NA concrete. It can be seen that all ages, NA concrete performed better than RA concrete.

  • COMPARATIVE ANALYSIS OF THE COMPRESSIVE

    prepared using the crushed over burnt bricks known also as brick bats as coarse aggregates only, mixture of crushed over burnt bricks and river wash gravel as well as using river washed gravel from River Benue. Cubes of concrete were prepared and tested to study the compressive strength. The result indicate that the concrete having brick bats

  • Compressive Strength of Concrete Made with Quarry

    to determine its compressive strength. The specimens were cast using M20, M30 and M40 grade concrete with 20mm crushed granite as coarse aggregates. The study showed that the compressive strength

  • Comparative Analysis Of The Compressive Strength Of

    2021-5-4 · iii. To compare the compressive strength of concrete with gravel and crushed burnt bricks as coarse aggregates. iv. To determine the effect of partial substitution of gravel with crushed burnt bricks as coarse aggregates on the compressive strength of concrete. v. To develop a model for predicting the compressive strength of gravelcrushed

  • Determination of the Compressive Strength of

    This investigation seeks to obtain concrete of enhanced compressive strength using optimal combinations of ground ceramics—for partial replacement of Portland cement; river sand, stone dust, and/or crushed ceramics—for use as fine aggregates; and granite, bush gravel, and coarsely crushed ceramics as coarse aggregates. 2. Materials

  • Compressive strength assessment of recycled

    2019-11-10 · Finally, 15 cm cubes and 100 × 100 × 30 cm concrete slabs were cast to estimate the compressive strength of concrete using Schmidt rebound hammer, core, and cube testing. 2.3. Sample preparation. The compressive strength cube test was conducted under both wet and dry curing conditions at 11, 28, 42 and 90 days.

  • Strength Evaluation Of Concrete Using Marble

    2016-7-22 · To study the effect of using compressive strength of concrete cube containing waste marble powder of 5%, 10% and 15% as partial replacement of cement incorporating 15%, 30% and 45% of crushed tile aggregates as partial replacement of Natural coarse aggregates.

  • Compressive Strength of Concrete Using Sawdust as

    2016-9-9 · compressive strength were 57.5%, 68.1%, 83.7%,and 87.3% respectively. The results of the study indicate that both the density and compressive strength of concrete decreased as the percentage replacement increased but replacement of sand by sawdust produced a higher percentage reduction in compressive strength than in density.

  • Effect of aggregate type on Compressive strength of

    2017-12-12 · concretes were tested for compressive strength at 3, 7, 14, 21, and 28 days. Three cubes were crushed using the compressive testing machine and the average taken as the compressive strength of the concrete. 3. Model development Models for compressive strengths have been developed using the experimental results. These models are shown in Figure 1.

  • Effect of Recycled Aggregate on Compressive

    Compressive strength of concrete using recycled aggregates and virgin aggregates were compared using normal curing. The compressive strength of cubes was. determined with the help of compression testing machine (CTM). Table 3 gives the result of compressive strength of 0concrete of both fresh and recycled concrete at the age of 7, 28, 56 days

  • Effects of Water-Reducing Admixture on the Compressive

    Compressive Strength of Concrete Using Crushed Mangima Stone as Fine Aggregate Jonathan B. Calibara* and Ruel R. Cabahug College of Engineering and Architecture University of Science and Technology of Southern Philippines Cagayan de Oro Cagayan de Oro City, 9000 Philippines *[email protected] Date received: March 13, 2020

  • Compressive Strength of Concrete Using Recycled

    attained the highest compressive strength, followed by 1:11/ 2:3, 1:2:4 and 1:3:6 mixes. Table 5 shows the relative strength of RA concrete. The value is the compressive strength of RA concrete expressed as a percentage of the compressive strength of NA concrete. It can be seen that all ages, NA concrete performed better than RA concrete.

  • Comparative Analysis Of The Compressive Strength Of

    2021-5-4 · iii. To compare the compressive strength of concrete with gravel and crushed burnt bricks as coarse aggregates. iv. To determine the effect of partial substitution of gravel with crushed burnt bricks as coarse aggregates on the compressive strength of concrete. v. To develop a model for predicting the compressive strength of gravelcrushed

  • Can We Truly Predict the Compressive Strength of

    2018-7-5 · the compressive strength of concrete made with rolled natural aggregates (NA) differs from that of concrete made with crushed NA, when both come from the same natural sources. This is because the shape of aggregates also affects the ITZ [11]. In fact, for concrete made with crushed aggregates, the effective water/cement ratio

  • (PDF) PROPERTIES OF CONCRETE USING CRUSHED

    Using recycled aggregates as the replacement of natural aggregates at the level of up to 100%, concrete paving blocks with a 28-day compressive strength of not less than 49 MPa can be produced

  • Effect of Aggregate Flakiness on the Compressive

    compressive strength of concrete mixes is m15 and m20. From the literature review, it is observed that researches have been attempted on various aspects of flakiness of the aggregates. But it is observed that very few literatures are available on the effect of flakiness on the cubes strength using destructive and non-destructive method.

  • Crushed vs Round aggregate in concrete Structural

    2012-2-3 · From a compressive strength standpoint, there is little discernible difference. Yes, crushed stone provides a bit better aggregate-paste bond, but not so much as to greatly affect the compressive strength. The tensile strength is affected moreso by the aggregate shape. Durability, cracking and other general parameters are not significantly

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