Compressive strength prediction of Portland cement concrete with age using a new model

Elaty, Metwally Abd Allah Abd

doi:10.1016/j.hbrcj.2013.09.005

Cited by 111 publications

(28 citation statements)

References 8 publications

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“…Moreover, Elaty [22] who did an extensive research study to predict the strength of concrete mixtures, reported values for concrete strength after 28 days of curing from Lea's Chemistry of Cement and Concrete and other references [23]. The values range from 36.1-56.5 N/mm 2 .…”

Section: Compressive Strengthmentioning

confidence: 99%

Palm Oil Fuel Ash (POFA) and Eggshell Powder (ESP) as Partial Replacement for Cement in Concrete

Mohamad¹,

Mahmood²,

Min³

et al. 2018

E3S Web Conf.

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This study is an attempt to partially replace Ordinary Portland cement (OPC) in concrete with palm oil fuel ash (POFA) and eggshell powder (ESP). The mix proportions of POFA and ESP were varied at 10% of cement replacement and compared with OPC concrete as control specimen. The fineness of POFA is characterized by passing through 300 μm sieve and ESP by passing through 75 μm sieve. Compressive strength testing was conducted on concrete specimens to determine the optimum mix proportion of POFA and ESP. Generally the compressive strength of OPC concrete is higher compared to POFA-ESP concrete. Based on the results of POFA-ESP concrete overall, it shows that the optimum mix proportion of concrete is 6%POFA:4% ESP achieved compressive strength of 38.60 N/mm 2 at 28 days. The compressive strength of OPC concrete for the same period was 42.37 N/mm 2 . Higher water demand in concrete is needed due to low fineness of POFA that contributing to low compressive strength of POFA-ESP concrete. However, the compressive strength and workability of the POFA-ESP concrete were within the ranges typically encountered in regular concrete mixtures indicating the viability of this replacement procedure for structural and non-structural applications.

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Section: Compressive Strengthmentioning

confidence: 99%

Palm Oil Fuel Ash (POFA) and Eggshell Powder (ESP) as Partial Replacement for Cement in Concrete

Mohamad¹,

Mahmood²,

Min³

et al. 2018

E3S Web Conf.

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show abstract

“…Normet, Jakarta, Indonesia. A common procedure was used to make the CCS samples, firstly blended sand, coarse aggregate, PCE and OPC in dry condition and then added water to make slurry in a cylindrical tube such thing as conventional concrete mixture [17][18].…”

Section: Methodsmentioning

confidence: 99%

Effects of Cement and Polycarboxylate Ether on the Performance Concrete with High Sludge Content

Jonbi*,

Fulazzaky,

Arif

2020

IJITEE

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The use of precast concrete structural systems in civil engineering industry in Indonesia will still increase due to the needs of buildings and infrastructure for social and economic development continuously increase from the year to year. In spite of the use of sand accompanied with its suitable sludge content has been widely used as one of the important raw materials for fabricating a precast concrete, the availability of low cost method to obtain a good quality of sand with its sludge content of less than 5% is difficult to find in many regions in the country. The aim of this study was to assess the performance of four cylindrical concrete specimen (CCS) samples by conducting the experiments of testing the natural sand with its high sludge content of 12.7% with using the different ordinary Portland cement (OPC) compositions of 2.5, 5.0, 7.5 and 10.0% and the super-plasticizer of polycarboxylate ether. Two CCS samples of the same composition (1) using the washed sand with its sludge content of 3.7% and (2) without addition of OPC were used as control. The results of compressive strength and slump test verified that the addition of OPC at least by 2.5% into concrete slurry to ensure optimal performance of the CCS samples can be recommended using the natural sand accompanied with its sludge content of 12.7%. This study concluded that the use of local natural sand with its high sludge content as long as the other material compositions used properly could be safe in the fabrication of precast concrete structure for the future civil engineering applications.

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“…Predictive model for the compressive strength of concrete with different water-to-cement ratios was given by Abram [39], which is one of the significant advancements in concrete technology [40]. Characteristics and proportioning of materials and concrete, curing, and parameters of testing are major factors, which are affecting precise measurements of compressive strength.…”

Section: Predictive Modelsmentioning

confidence: 99%

Experimentation and Predictive Models for Properties of Concrete Added with Active and Inactive SiO2 Fillers

2019

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Cement is one of the main constituents of concrete material and it is one of the main sources of carbon dioxide emissions in the environment. Fillers within a range of 5–7% from different sources can be used as a replacement of cement without compromising the properties of concrete or even tailoring for required property. This paper investigates the influence of inactive silica filler and silica fume on the mechanical- and durability-related properties of concrete with different strengths. The investigated mechanical properties focused on compressive strength at different ages up to 400 days, while the durability-related properties focused on porosity and rapid chloride ion penetrability (RCPT). Two types of ultrafines, namely quartz ultrafine and silica fume, were used. Concrete mixtures with four different water/binder ratios (0.25, 0.30, 0.35, 0.40) were prepared for various dosages of quartz ultrafine (0%, 5%, 8%, 10%, 15%, 25%, and 35%) and different dosages of silica fume (0%, 8%, 10%, and 12%). The results revealed that the compressive strength and durability related properties of concrete with different dosages of ultrafines and silica fume were significantly affected; however, there was a negative impact of ultrafine filler on the compressive strength after replacement of more than 8% of ultrafines. The strength relationships for the concrete with different water-to-cement ratio were assessed and certain modifications were proposed for ultrafines and silica fume. Predictive models were proposed for predicting the compressive strength of concrete in terms of RCPT and porosity for different levels of replacements of ultrafines and silica fume.

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Compressive strength prediction of Portland cement concrete with age using a new model

Cited by 111 publications

References 8 publications

Palm Oil Fuel Ash (POFA) and Eggshell Powder (ESP) as Partial Replacement for Cement in Concrete

Palm Oil Fuel Ash (POFA) and Eggshell Powder (ESP) as Partial Replacement for Cement in Concrete

Effects of Cement and Polycarboxylate Ether on the Performance Concrete with High Sludge Content

Experimentation and Predictive Models for Properties of Concrete Added with Active and Inactive SiO2 Fillers

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