Characteristics of hybrid alkaline cement composites with high cement content: flash set and high compressive strength

Park, Sungwoo; Moges, Kebede A.; Wu, Siyu; Pyo, Sukhoon

doi:10.1016/j.jmrt.2022.01.105

Cited by 24 publications

(6 citation statements)

References 50 publications

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“…In this study, thermogravimetric analysis was performed with a TGA system Q500 (TA Instrument, New Castle, DE, USA) with the nitrogen carrier gas and at a heating rate of 10 °C/min from 30 to 900 °C. All the HGM and CS specimens were ground into powder and processed by a solvent exchange method for preparing the TGA test [ 39 , 40 ].…”

Section: Materials and Test Methodsmentioning

confidence: 99%

Effect of Types of Microparticles on Vibration Reducibility of Cementitious Composites

Park

Pyo

2022

Materials

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The vibration-reducing ability of construction materials is generally described by the damping ratio of the materials. Previously, many studies on the damping ratio of concrete have been done, such as the addition of rubber, polymer, fiber, and recycled aggregates in the concrete. However, the application of these materials in construction is limited due to their drawbacks. This paper investigated the effect of the replacement ratio and the size of the hollow glass microspheres (HGM), cenospheres (CS), and graphite flakes (GF) on the damping ratio of mortar. Furthermore, rubber particles (RP), aluminum powder (AP), and natural fiber (NF) were investigated to find if they have a combination effect with HGM. The half-power bandwidth method was conducted to obtain the damping ratio at 28 days of curing, and the compressive and flexural strength tests were also conducted to study the mechanical properties of mortar that contained HGM, CS, and GF. The results show that increases in the size of HGM and the replacement ratio of sand with HGM lead to an increase in the damping ratio. Moreover, RP and NF do not provide a combination effect with HGM on the damping ratio, whereas the application of AP results in a drastic compressive strength decrease even with an increase in damping ratio when incorporated with HGM. Besides, an increase in the replacement percentage of CS also leads to an improvement in the damping ratio, and a smaller size and higher replacement ratio of GFs can improve the damping ratio compared to other additives. As a result, CS and GF are more effective than HGM. 50% replacement ratio of CS slightly reduced the compressive strength by 6.4 MPa while improving the damping ratio by 15%, and 10% replacement ratio of samller GF can enhance the flexural strength by over 4.55% while increasing the damping ratio by 20.83%.

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Section: Materials and Test Methodsmentioning

confidence: 99%

Effect of Types of Microparticles on Vibration Reducibility of Cementitious Composites

Park

Pyo

2022

Materials

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“…Desain campuran bertujuan untuk mendapatkan berat setiap material beton yaitu semen, agregat kasar, pasir, dan air. Pengaruh proporsi pencampuran pasta semen pada kekuatan tekan sangat besar (Park et al, 2022). Desain campuran beton biasanya dilakukan sesuai dengan prosedur standar yang ditentukan dalam kode yang dikembangkan oleh lembaga yang diakui seperti Lembaga Penelitian Bangunan (Joshua et al, 2020).…”

Section: Rancangan Campuranunclassified

Kinerja Beton Mengandung Agregat Kasar Daur Ulang Limbah Bongkahan Beton

Syahrul

2022

jurissipil

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Concrete waste generated from construction and demolition is a major problem generated in large quantities. The use of waste concrete as a substitute for conventional aggregate materials is a way to reduce waste generated from construction and sample testing and reduce exploration of natural materials, which have an impact on the environment and damage natural. Waste concrete can be recycled and can be used for various purposes. The use of coarse aggregate ranges from 70 to 80% in concrete mixes so the reuse of recycled concrete coarse aggregate has been widely reported, but few studies have focused on recycling and extracting value from concrete grains. The laboratory test method used several parameters to determine the physical properties of the concrete mixture and the characteristics of the compressive strength of cube concrete 150 mm x 150 mm x 150 mm with a sample size of 12 samples for 0%, and 12 samples for 100% recycled aggregate. The compressive strength of concrete was reviewed 3 and 28 days after treatment according to SNI. The compressive strength of recycled concrete aggregates increased by 11.54% at the age of 3 days and decreased by 27.64% at the age of 28 days.

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“…The control mixture only contained Portland cement, natural aggregate and drinking water which was called PC (Control Mixture) [30]. The effect of the proportion of cement paste mixing on the compressive strength is very large [31]. Concrete mix design is usually carried out according to standard procedures specified in codes developed by recognized institutions such as the Building Research Institute [32].…”

Section: Mixed Designmentioning

confidence: 99%

Characteristics of Concrete With Rice Husk Ash Local Kutai Kartanegara

Syahrul

2022

JTSP

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Abstract. Concrete material made from natural waste was developed to balance the use of concrete materials resulting from natural exploration with an impact on environmental damage, rice husk is a waste material from rice mills and contains reactive silica and has the benefit of reducing energy consumption in cement production. Laboratory test method in the form of testing the compressive characteristics used standard cube concrete 150 mm x 150 mm x 150 mm with a total sample of 24 samples. The effect of concrete strength on the amount of cement replacement is 0%; 5%; 10% ; and 15% which could be compared with concrete without using husk ash. The compressive strength obtained in terms of the age of the concrete is 28 days. The mechanical properties of husk ash at the age of 28 days gave optimal compressive strength results with the addition of 5% husk ash.

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Characteristics of hybrid alkaline cement composites with high cement content: flash set and high compressive strength

Cited by 24 publications

References 50 publications

Effect of Types of Microparticles on Vibration Reducibility of Cementitious Composites

Effect of Types of Microparticles on Vibration Reducibility of Cementitious Composites

Kinerja Beton Mengandung Agregat Kasar Daur Ulang Limbah Bongkahan Beton

Characteristics of Concrete With Rice Husk Ash Local Kutai Kartanegara

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