increasing compressive strength of concrete

Factors affecting the results of concrete compression testing: A

2021年3月1日 To sum up, Weibull’s theory is mostly not applicable for concrete and other quasi-brittles, but it behaves well for brittle failure like glass.

A systematic review and assessment of concrete strength

2023年7月1日 3

Improving early compressive strength of precast concrete by

2022年8月9日 The increase of active silicon content in precast concrete can greatly improve the early compressive strength of precast concrete (PC) under steam curing conditions. The

Influence of temperature on the compressive strength

Materials research attempts to support the trend toward leaner, larger, and more material-efficient buildings and structures. In reinforced concrete construction, this is achieved primarily by increasing the concrete's compressive strength.

A review on strength development of high performance concrete

2021年11月8日 Experimental study results have confirmed that total porosity can be used to predict the strength; thus the most commonly used relationships between compressive

Influence of temperature on the compressive strength of high ...

Because of the large number of samples and the influence of the strength development by increasing age, all sam-ples were tested at least 90 days after concreting, compare

Presenting a model for estimating the cube compressive strength

2 天之前 The optimal mixture design for concrete is obtained by selecting the available materials which make the concrete executable and ensure reaching the expected strength

Increasing the Compressive Strength of Concrete Using PPC

2021年1月10日 The compressive strength test of concrete is carried out at the ages of: 3, 7, 14, 21, and 28 days. From the research results obtained, compressive strength of concrete

Feature engineering for predicting compressive strength of high ...

2023年7月11日 Their findings indicated that both the ANN and ANFIS models outperformed MLR in terms of CCS prediction for RAC.

Factors affecting the results of concrete compression testing: A

2021年3月1日 Thus, the concrete compressive strength is also dependent on the shape, although specimens produced “a strong size effect” regardless of the slenderness ratio [15], [96]. ... The slenderness ratio also has a significant effect on compressive strength. Increasing the h/d ratio results in a decrease in compressive strength [2], ...

(PDF) An Investigation on the Compressive Strength

2023年7月9日 The results of the study revealed that the optimum increase of compressive strength of 9.8% against the control concrete mix was achieved when a concrete mix of 10% RHA partial cement replacement ...

Effects of Fibers on Compressive Strength of Concrete

2023年1月1日 This laboratory analysis was done to scrutinize the compressive strength of nominal mix concrete (NMC) and fiber reinforced concrete (FRC) for M30 grade of concrete. ... The experimental findings revealed that the addition of hybrid fibers could increase the uniaxial compression behaviour of plain concrete.

Compressive Strength of Concrete: The Best Curing Techniques

2023年5月31日 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. ... Proper curing will increase durability, strength, water-tightness, abrasion resistance, volume stability, ...

Dynamic increase factor of concrete compressive strength in

2024年8月30日 Concrete is a strain-rate-dependent material, and its compressive strength under high strain rates increases compared to that under a static state due to the strain-rate effect [1], [2], [3], [4].The strain-rate effect on the concrete compressive strength should be considered for accurate evaluation and economical design of concrete structures subjected to

Compressive Strength of Concrete with Admixtures, How to Increase

2020年4月3日 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

Influence of Wastes and Synthesis Conditions on the Compressive

1 天前 In civil engineering, both rapid setting and delayed setting are needed for various application scenarios. In order to regulate the setting time of concrete, the iron ore tailings-blast furnace slag (IOT-BFS)-based geopolymers were synthesized with a broad range of setting time and a high compressive strength in this study. The factors of iron ore tailings content, alkali

1. Modulus of Elasticity of concrete increases with increase in ...

Brittleness of concrete increases with an increase in compressive strength of concrete. Brittleness of high strength concrete is generally very high. Low strength concrete is less brittle than high strength concrete. Similarly, shear strength of concrete is given by, τ cmax = 0.628 √f ck . ∴ Shear strength is proportional to √f ck

Effectiveness of bamboo fiber as an strength enhancer in concrete

2016年6月12日 It is noted that the concrete samples with the addition of 0.5% BF is considered as the optimum percentage because it able to increase the compressive and tensile strength of concrete grade M20.

Carbon dioxide sequestration in concrete and its effects on concrete

2020年1月1日 The compressive strength of concrete samples with sequestration of CO2 gas is expected to be higher than of the concrete without CO2. Previous article in issue; ... Cement, being the main binding material for concrete that has been used since ancient times together with the increasing rate of modernization of the world, ...

Feature engineering for predicting compressive strength of high ...

2023年7月11日 High-performance concrete finds extensive application in a diverse range of civil engineering structures, such as towering buildings, swift roadways, sea-spanning bridges, dams, and marine constructions. Anticipating the compressive strength of concrete poses significant challenges due to its inherent complexity. However, this study successfully utilized

Effect of Superplasticizer Dosage on Workability

2016年4月1日 The concrete created had a little lower compressive strength than normal concrete, but it was still quite strong (Awoyera Adesina, 2020;Bag et al., 2020;Balea et al., 2021).

Improving early compressive strength of precast concrete by increasing

2022年8月9日 The increase of active silicon content in precast concrete can greatly improve the early compressive strength of precast concrete (PC) under steam curing conditions. The increase of active silicon content in PC can greatly improve the early hydration process of cement and accelerate the rate of early cement hydration heat release.

Influence of superplasticizer on strength of concrete

2012年1月1日 Properties such as compressive strength were determined, besides determining the workability of the fresh concrete. However, compressive strength is improved by dosage 1.0% of SP after 28 days ...

Compressive and Tensile Strength of Concrete: Relation Concrete ...

In this article we will discuss about the relation between compressive and tensile strength of concrete. The theoretical compressive strength of concrete is eight times larger than its tensile strength. This implies a fixed relation between the compressive and tensile strength of concrete. In fact there is a close relation but not a direct proportionality. The ratio of tensile to

How to Evaluate the Compressive Strength of Concrete - Antoun

2021年3月3日 It is estimated that concrete reaches 75% of this 28-day compressive strength in 7 days, and its strength will remain stable or even increase over time. Over time, the Concrete’s compressive strength can continue to increase due to

Compressive and tensile behaviour of concrete subjected to high

2024年1月2日 The dynamic compressive strength of concrete increases from 57.5 to 88 MPa with an increase in the strain rate from 72 to 284 s −1 describing the strain rate sensitivity of the concrete. The energy absorption capacity significantly increased from 0.289 to 0.930 J/m 3 as the strain rate increased from 72 to 284 s −1 due to the formation of large number of cracks and

Compressive Strength of Concrete Explained UltraTech Cement

The compressive strength test of concrete is the property most valued by designers and quality control engineers. At the same time, the tensile strength of concrete is a critical parameter that significantly impacts the durability and flexibility of structures in the long run.

Compressive strength prediction of high-strength concrete

2023年5月25日 Concrete is the most extensively used construction material, and cement is its main component. Hybrid machine learning models attract researchers in building materials due to their high applications and prediction accuracy. Hybrid machine learning model interpretability is crucial to apply to the interest of field experts. Therefore, this research study proposes to

Impact Assessment of Plastic Strips on Compressive Strength of Concrete ...

2023年11月4日 Further, it was observed while experimenting that the compressive strength of concrete initially increases with the increase of plastic content at 7 days and 14 days of curing but further curing up to 28 days shows reduction in strength. The optimum compressive strength is obtained when the strips are laid at a distance of 50 mm c/c.

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