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Jun 26, 2020 ResearchArticle Prediction of Later-Age Concrete Compressive Strength Using Feedforward Neural Network Thuy-Anh Nguyen, Hai-Bang Ly, Hai-Van Thi Mai , and Van Quan Tran

Get PriceEmail contactApr 01, 2002 Microwave energy can accelerate the hydration of cement, resulting in rapid strength development of concrete in an early period. In this paper, prediction of later-age compressive strength of normal concrete, made with rapid-hardening and ordinary Portland cement, based on the accelerated strength of concrete cured with microwave energy was investigated.

Get PriceEmail contactconcrete compressive strength prediction using a monte carlo simulation,” Sustainability , vol. 12, no. 3, p. 830, 2020. 8 Advances in Materials Science and Engineering

Get PriceEmail contactSep 01, 2014 Assessment of concrete compressive strength up to 200 years due to sulfate attack was considered in phase two. The neural network model showed high validity on predicting compressive strength, expansion and weight loss due to sulfate attack. Design charts were constructed to predict concrete compressive strength loss.

Get PriceEmail contactPrediction of Later-Age Concrete Compressive Strength Using Feedforward Neural Network Table 1 Summary of the empirical equations for determining the compressive strength of concrete.

Get PriceEmail contactAdvances in Materials Science and Engineering (2020-01-01) . Prediction of Later-Age Concrete Compressive Strength Using Feedforward Neural Network

Get PriceEmail contactJan 01, 1994 Abstract. This chapter deals with methods for estimating the potential, later-age strength of a concrete mixture based upon the compressive strength measured on cylindrical specimens at early ages. The results of the cooperative research program leading to the development of ASTM Test Method for Making, Accelerated Curing, and Testing Concrete ...

Get PriceEmail contactIn this paper, prediction of later-age compressive strength of normal concrete, made with rapid-hardening and ordinary Portland cement, based on the accelerated strength of concrete cured with ...

Get PriceEmail contactSep 01, 2014 Assessment of concrete compressive strength up to 200 years due to sulfate attack was considered in phase two. The neural network model showed high validity on predicting compressive strength, expansion and weight loss due to sulfate attack. Design charts were constructed to predict concrete compressive strength loss.

Get PriceEmail contactcompressive strength or dynamic modulus of concrete (Lin, et al., 2007 and Khademi, et al., 2016). However, the majority of tests were performed to evaluate the 28 day (later age) compressive strength of concrete. In addition, the effect of concrete mixture parameters such as

Get PriceEmail contactConcrete compressive strengths in 5 hours ... c e l e rated strength testing is now to be used both for c o n t r ol and for prediction of later-age strength by the Corps of Engineers in major civil works pro j e c t s . Test results on these projects we r e obtained much

Get PriceEmail contactequation for the prediction of concrete compressive strength at different ages (e.g. 7 and 28 days). The variables used in the prediction models were from the knowledge of the mix itself, i.e. mix proportion elements (cement, water, sand, aggregate and density). The proposed

Get PriceEmail contactConcrete compressive strength is inﬂuenced by many fac-tors including, water/cement ratio, cement content and proper-ties, aggregate type and its properties, etc. This paper introduces a simple mathematical model that can help predict-ing the compressive strength for a speciﬁed concrete mix at any 146 M.a.a. Abd elaty

Get PriceEmail contactBased on the early strength, many studies have been conducted to predict and analyze the compressive strength of concrete or cement mortar at 28 days or other days [14][15] [16] [17][18]. The ...

Get PriceEmail contactCompressive strength of concrete has been predicted using evolutionary artificial neural networks (EANNs) as a combination of artificial neural network (ANN) and evolutionary search procedures, such as genetic algorithms (GA). In this paper for purpose of constructing models samples of cylindrical concrete parts with different characteristics have been used with 173 experimental data patterns.

Get PriceEmail contactconcrete to its temperature history, the compressive strength development in a struc tural member and hence formwork striking times may be predicted. *Mr. Sadgrove was with the Cement and Concrete Association, London, when this research was done.

Get PriceEmail contactTóm tắt: Prediction of Later-Age Concrete Compressive Strength Using Feedforward Neural NetworkPrediction of Later-Age Concrete Compressive Strength Using Feedforward Neural NetworkPrediction of Later-Age Concrete Compressive Strength Using Feedforward Neural Network

Get PriceEmail contactJul 07, 2021 This paper proposes a prediction of the compressive strength of concrete with manufactured sand (MS-concrete) based on an ensemble classification and regression tree (En_CART) method. A data set containing 1,350 original measured strengths of 328 concrete mixtures from actual engineering projects were used for training and testing.

Get PriceEmail contactPrediction of Later-Age Concrete Compressive Strength Using Feedforward Neural Network Table 1 Summary of the empirical equations for determining the compressive strength of concrete.

Get PriceEmail contactSep 11, 2013 Early age testing of concrete (accelerated curing and warm water curing) was conducted to predict the later age strength of concrete. Based on this relationship, the polynomial regression analysis was carried out and coefficients were proposed to find the 28, 56, 90 and 365 days strength of the HVFA concrete.

Get PriceEmail contact1.5 Compressive strength of concrete The strength of concrete is controlled by the proportioning of cement, coarse and fine aggregates, water, and various admixtures. The ratio of the water to cement is the chief factor for determining concrete strength. The lower the water-cement ratio, the higher is the compressive strength.

Get PriceEmail contactConcrete compressive strengths in 5 hours ... c e l e rated strength testing is now to be used both for c o n t r ol and for prediction of later-age strength by the Corps of Engineers in major civil works pro j e c t s . Test results on these projects we r e obtained much

Get PriceEmail contactPrediction of Local Concretes Compressive Strength Using The Maturity Method Mohammed Ali Abdalla Elsageer1*, Wisam Elhmali Mansour2, Hamad Suliman Abulaaj3 [email protected], 2 [email protected], 3 [email protected] 1Department of Civil Engineering, Faculty of Engineering, Sirte University, Libya ...

Get PriceEmail contactminimum 28-day strength of concrete made with significantly reduced cement factors. The purpose is to develop prediction equations appropriate for use when early tests indicate abnormally low compressive strengths. RESEARCH APPROACH Prediction of Concrete Strength Since the 1930s, much work has been done to determine whether or not concrete is of

Get PriceEmail contactThe compressive strength gained by concrete is thus measured at its 28th day after which the rate of strength is lowered. The compressive strength gained at later ages are tested by means of non-destructive tests. The table-1 below shows the rate of strength gained from the first day to 28th day. Table.1: Strength Gained by Concrete With Age.

Get PriceEmail contactMay 19, 2016 Prediction of concrete compressive strength considering humidity and temperature in construction of nuclear power plants. Nuclear Engineering and Design, 275, 23–29. Article Google Scholar Liao, W. C., Lee, B. J., Kang, C. W. (2008). A humidity-adjusted maturity function for the early age strength prediction of concrete.

Get PriceEmail contactJun 27, 2020 strength prediction for high-performance concrete, and the method of applying the ensemble was found to be slightly better [25]. Yuvaraj et al. conﬁrmed the applicability of several variables to the SVM model by predicting the fracture characteristics of concrete beams according to the ratio of concrete mixtures from the SVM model [26].

Get PriceEmail contactOct 19, 2020 Concrete is a material with high strength in compression, but low strength in tension. That is why engineers use reinforced concrete (usually with steel rebars) to build structures. Content. Given are the variable name, variable type, the measurement unit, and a brief description. The concrete compressive strength is the regression problem.

Get PriceEmail contactAdditionally, past research has focused on the compressive strength of the concrete when determining its resistance to applied stresses. Though compressive strength is the primary design parameter in mass concrete, thermal cracking is inherently a tensile phenomenon.

Get PriceEmail contactAug 07, 2021 In addition to the one-to-one models, we initiate the use of DC and LF simultaneously without creating extra mathematical models, which, however, can predict the compressive strength of an unknown concrete accurately. Four types of concrete mixes were prepared with w/c ratios of 0.40, 0.45, 0.49 and 0.60.

Get PriceEmail contactAdvances in Materials Science and Engineering (2020-01-01) . Prediction of Later-Age Concrete Compressive Strength Using Feedforward Neural Network

Get PriceEmail contactFor approx value u can use this table for eg if u have strenght of 7 days as 13–14N/mm2 this means it is 60–65% of 28days strength so 28 days strength should be around 20N/mm2 which is 99% of final strength u can use this ratio to get approx value

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