2009.1.1 From the obtained test results, the study concluded that the use of these additives in concrete significantly affects both the compression strength, flexural tensile strength (rise or...
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2021.10.14 Many researchers have confirmed that the application of RDPs improves the mechanical strength of mortar and concrete, e.g., the compressive strength and
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In this research, it was studied the dossing effect of nopal mucilage and Ixtle fiber as additives for the enhancement of concrete’s mechanical properties: compression
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2020.1.1 In this study, three different strategies to improve the compressive strength of ultra-lightweight foamed concrete through the modification of its
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2020.3.26 At 20% and 4% replacement level of GGBS and Nano Silica increases concrete compressive strength. Increase in compressive strength is 37% when
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2023.7.1 The compressive strength of concrete is conventionally determined by applying increasing axial compression uniformly distributed load on a hardened
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2022.4.13 Concrete admixtures used in the experiment ... Figure 1 shows the 1d compressive strength had a process of first increasing and then decreasing with the
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2022.9.12 A preparation process of high value-added specific additive was designed from plastic waste concrete. • The 12 h compressive strength of cement was
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2012.2.1 An Experimental Study about the Effects of Various Types of Additives on the Compressive Strength of Concrete, and the Points that should be Considered
Read More2009.1.1 Figure 13 shows that there is a negligible increase in the compressive strength when the percentage composition of the mixture of additives is increased, which leads to a marginal rise in water ...
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2021.10.14 Their compressive strength, compared to standard-strength concrete, was raised by no less than 60 MPa after the standard 28-day period . The first report devoted to the super-high compressive strength of concrete, exceeding the 150 MPa value after the standard 28 days, was published by Braunauer et al. .
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Compressive Strength of Concrete with Admixtures, How to Increase Strength of Concrete (IS: 516- 1959),Often it is observed, attainment of early compressive strength in concrete is a challenge. Researchers have tried various admixtures to achieve the objective. This work addresses the issue of achieving early compressive strength in
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Request PDF On Apr 20, 2020, Tamrin Anon and others published THE EFFECT OF THE COMBINATION ADDITIVE ADMIXTURES TO INCREASE SETTING TIME AND COMPRESSIVE STRENGTH AT THE CONCRETE CASTING IN WARM ...
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2021.2.1 of concrete compressive strength and quality fr om non-destructive ... strength of concrete increases. iv. ... additive made up of waste material can positively increase the characteristic ...
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To answer this problem, the research objective is to add Betonmix additives to improve concrete performance and increase the compressive strength of concrete structurally. Normal compressive strength value of concrete at the age of 7 days is only 249.21 kg/cm2. The compressive strength of normal concrete at 28 days is 260.75 kg/cm2. The
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2019.9.4 From the results of this study it was concluded that with the addition of 0.25 % fiberglass it was found to be strong the highest compressive strength is 24.6 MPa and the splitting strength of 3.9 ...
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2019.2.9 Natural zeolite (10%) increased compressive strength, but zeolite (20%) reduced it due to high voids content in concrete. SF and FA increased compressive strength due to filler effect between cement grains as well as their pozzolanic activity (Sabet et al. 2013). Carbon fiber decreased unit weight due to its lightweight (Yakhlaf et al. 2013).
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2021.2.5 The test results indicate that the compressive strength flexural strength of HSC is about 33.69 13.09% are more than conventional concrete and Percentage mass loss is less when immersed in ...
Read MoreConcrete additives. compressive strength will be Accelerating concrete admixtures are used to increase the rate of concrete strength development or . Get Price. Experimental study on strength parameter of reinforced . 2% as additives for each of the concrete variation of compression strength of the concrete with 0% % increase overcome with
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2013.10.18 To increasing the compressive strength of concrete, we must increase cement and decrease water quantity. For example, M15 grade of concrete when we use50 kg of cement,480 kg aggregates and32 liters water we get15N/sq.mm compressive strength after28 days by15 cm. cube test.
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2003.3.1 Furthermore, by increasing the concentration of nanoparticles in the concrete, its compressive strength also increased. However, the inclusion of nanoparticles reduced permeability and porosity, so that the sample containing 15 % pumice and 5 % nanoparticles exhibited the highest change, with a 44 % reduction compared to
Read More2023.5.31 The American Concrete Institute (ACI) recommends a minimum curing period corresponding to attaining 70% of the compressive strength of concrete. The specifications say that this can happen after seven days of curing. However, 70% strength can be reached quickly when concrete cures at higher temperatures, or when certain
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2023.7.1 Abstract. In Civil Engineering field, the compressive strength of concrete is a key parameter to design concrete structures and evaluate existing structures. Conventionally the measurement of the strength requires a considerable amount of time (∼28 days) and cost. Thus, this paper comprehensively reviews the literature on
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2018.11.1 Similarly, the flexural strength of concrete has also increased by increasing the percentage of PF from 0 to 0.3%. By further increasing PF up to 0.5%, it was determined that the compressive and ...
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2022.3.11 In addition to cement, sand, gravel, and water, the current investigation of the influence of additives on the compressive strength of concrete at 28 days includes fly ash, silica fume, and slag. 315 concrete compositions with various amounts of additives are trained and tested using an artificial neural network. Concrete strength is largely
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2019.10.4 Regarding the compressive strength, findings revealed that the compressive strength of the concretes declined from 32.03 to 10 MPa, as the periwinkle shell substitution increased from 0 to 2 kg ...
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2021.2.16 The main thrust of the work reported herein is to study the effect of chemical additives to make beneficial use of carbon dioxide in enhancing the compressive strength of dry-cast concrete. The ...
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As illustrated in the comparative histogram shown in Fig.2, these microstructural differences lead to an increase in the compressive strength of ultra-lightweight foamed concrete, especially in ...
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Additives increasing the strength of concrete. Additives increasing the strength of concrete are used to improve the mechanical properties of concrete, such as resistance to compression, stretching, abrasion or swelling. They are used to modify a concrete mix or hardened concrete. The following types of additives can be distinguished: Read more.
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