Additives Additives To Increase Compressive Strength Of Concre
Evaluation of the compressive strength of polypropylene …
This study extensively examines the effects of introducing polypropylene fibers on the mechanical properties of high-strength concrete and develops predictive models for its compressive strength based on the mix proportions. The research is divided into two main parts. The initial section involves a thorough analysis of how polypropylene fibers influence various …
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Machine learning-based compressive strength prediction …
A total of 1030 sets of concrete compressive strength tests is collected to train and test the learners, in which the concrete mixture components (e.g., coarse/fine aggregates, cement, water, additive, etc.) and the curing time are set as the input data while the compressive strength value is set as the output data.
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A Review on the Effects of Styro Beads in Concrete …
The maximum decrement ratio was 81.5% and 57% for compressive and flexural strength, respectively, for WSFC5 at 28-day curing, while, by increasing the temperature to 600 °C for one hour, the ...
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(PDF) Compressive strength of pervious concrete paving …
The performance of the filling materials with 90% fly ash such as compressive strength, impermeability, viscosity, additive effect and diffusion rule are studied experimentally and theoretically.
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Optimization of Cuttlefish Bone Towards Compressive Strength …
All the samples were tested for compressive strength at 1, 3, and 7 days of age. According to the findings, an improvement in the concrete when the cuttlefish bone additive content from 1% to ...
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Investigation of the effect of mineral additives on concrete strength …
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 ...
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(PDF) Effect of Water-Cement Ratio on the Compressive Strength …
The results of compressive strength experiment showed that due to reduction of water-cement ratio from 0.33 to 0.50, the compressive strength improved by 34.4 and 35.2 %, respectively.
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(PDF) COMPRESSIVE STRENGTH AND DURABILITY OF CONCRETE WITH COCONUT
In every study, the maximum compressive strength was observed for the 10% replacement mix, and the mixes at higher replacement levels showed less compressive strength than the control mix at the ...
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Hybrid machine learning model and Shapley additive …
On the contrary, the effect of water, FA, and CA on the output compressive strength is negative, and the increase of these three components decreases the compressive strength. To obtain further insight, dependency plots are created, as shown in Fig. 11 . dependency plots show the marginal effects of the two features on the predicted results.
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Strength development of concrete with fly ash addition
Based on experimental results, mathematical models were elaborated to predict the development of compressive strength of concrete with fly ash replacement percentages up to 30 %.
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Experimental study of the effect of water reducing …
For concrete to be good, it needs to be easy to work with. Different situations call for different levels of workability in concrete [1].High workability is needed for things like deep beams, thin walls of water-holding structures with a high percentage of steel reinforcement, column and beam junctions, tremie concreting, pumping of concrete, concrete used in hot …
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Influence of various additives on properties of concrete
They can increase the strength by 20-40% at the age of 28 days at dosages of 1.6-6% with a decrease in water-cement ratio and a decrease of cement amount by 20%. ... Additives highly increase the ...
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(PDF) Effects of Accelerators and Retarders in Early Strength
accelerator promoted the early strength of concre te with OPC and secured its constructab ... Compared with no additives, the setting time was prolonged by 33% from 90 min, the strength of 12 h ...
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State-of-the-art of Mechanical Properties of 3D Printed …
In general, with the increase of fiber content, the compressive strength of printed concrete also increases [18], [28], [90]. However, in some cases, the compressive strength …
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Reinforced Concrete
Aggregate: Aggregate mixtures with a smaller grain size yield an increase in strength as well as better processing properties. As the compressive strength of concrete increases, the demands on the additives used are also increased. For concrete strengths above 100 N/mm 2, broken aggregates such as basalt, gabbro, or granite split are required ...
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Effects of Polymers on Cement Hydration and …
These polymers are used as additives in concrete and mortar to enhance the modulus of elasticity, bond strength, toughness, and impermeability. ... Another concrete mix containing 0.60 water-to-cement ratio showed an …
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Reviewing the potential: a comprehensive review of natural …
The study revealed that increasing the coir fiber content by 1% at a length of 50mm could improve compressive strength by 27.5%, increase tensile strength by 10.39%, and reduce density by 4.3%. These results align with those from Ruben and Baskar [ 50 ], who noted a 19.4% increase in compressive strength upon adding 1% coir fibers with a length ...
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Concrete Strengthening by Introducing Polymer …
The modern types of concrete are a mixture of aggregates, cement, water and optional additives and admixtures. In particular, polymer additives seem to be a promising type of component that can significantly …
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(PDF) Effect of rice husk ash (RHA) on compressive strength of concrete
This paper presents a study on the development of compressive strength up to 91 days of concretes with rice-husk ash (RHA), in which residual RHA from a rice paddy milling industry in Uruguay and ...
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Effect of Dried Sewage Sludge on Compressive Strength of …
The sewage sludge ash analyzed in this paper meets the standard conditions to be used as an additive in the cement industry: the content of SO 3 of ash is less than or equal to 4%, the compressive ...
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Additives to increase the strength of concrete
mineral additives (e.g. microsilica)—due to its very small particle size, SiO 2 penetrates the spaces between cement grains, filling the resulting micropores. Because of this, it increases its strength; cement additives (e.g. aluminous cement)—used in specialised applications, such as the production of heat-resistant products, repair of concrete under chemically aggressive …
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Investigative Experimental Research: Effects of Waste …
(PC) whereas there is a drop in compressive strength of about 4-70% for concrete with rubber content varying from 5- 50%. [10] In addition, the size of the rubber is another factor that affects the compressive strength of concrete with rubber additive compared to PC which shows an inverse relationship between the two variables. [10].
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Production of high-performance concrete through the …
Concrete plasticizing (i.e., improved concrete flowability) might also be achieved through the addition of water reducers to the cement mixture. Despite the increase in the fluidity of concrete at a constant water-to-cement ratio with the addition of water reducers, its compressive strength remains not affected [3, 4]. Additional benefit of ...
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Experimental Comparative Study of Effect of Different Additive …
Concrete cubes with dimensions 100x100x100 mm for compressive strength test were used and examined at the time of 28 days, using different mix proportions resulted from different percentages of ...
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Effect of Superplasticizers to Enhance the …
The tests considered for study are, slump test and compressive strength test The results show that the increase of superplasticizer dose in concrete leads to gain of good ability in addition to slump.
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(PDF) Strategies to increase the compressive strength of …
It is found that the increase of mixing intensity from 1200 rpm to 3000 rpm resulted in a considerable increase of mechanical strength values of 3DP-LWFC, up to more than 70% for the compressive ...
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Types of Admixtures for Concrete
A 30 o F increase in mix temperature can cut setting time in half, increase water requirements, and reduce the 28-day compressive strength as much as 25%. A switch from ASTM C494 Type A to Type D water reducing and set retarding mix may be …
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(PDF) Statistical Characteristics of compressive strength of …
Dispersion of the compressive strength data increases with the increase in mean value of the compressive strength of a mix. 2.) One of the most important measure of the dispers ion of the data is ...
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(PDF) Effect of Banana fibers on the enhancement of compressive …
Natural fibers may reduce or slightly increase the compressive strength of concrete but they increase the energy absorption of concrete significantly (Ali et al. 2012; Abrar & Ali 2021). The ...
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The Effects of Polypropylene Wastes on the Compressive Strength …
There was a gradual decreas e in slump values up to 20 % PP replacement in concre te ... to ascertain its possible use as an additive in concrete construction. ... 22.1% increase in the ...
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