Bond behavior of lightweight concretes containing coated pumice aggregate: hinged beam approach

Beycioğlu, Ahmet; Arslan, Mehmet Emin; Bideci, Özlem Salli; Bideci, Alper; Emiroğlu, Mehmet

doi:10.12989/cac.2015.16.6.909

Cited by 6 publications

(7 citation statements)

References 12 publications

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“…Usually; it was investigated related bond stress properties (embedded, lap joint, boundary stress) with pull-out experiments, it was investigated cracking properties with beam tests (Durmuş et al, 2006;Karatas et al, 2010;Tuğrul Tunç, 2020). There are also push-out experiments that have been investigated in fewer studies than others (Ersoy and Özcebe 2001;Beycioğlu et al, 2015).…”

Section: Bond Stressmentioning

confidence: 99%

“…Thus, the debonding of the reinforcement from the concrete is measured (Figure 2). Bond stress is based on the bond stress corresponding to the load where the debonding value is 0.25 mm for safety (Ersoy and Özcebe, 2001;Beycioğlu et al, 2015).…”

Section: Pull-out Testmentioning

confidence: 99%

“…Hosseini et al, (2015) prepared 12 Standard Belgium Hinged Beam test samples in order to determine the effect of stirrup density and number on concrete-reinforcement bond. Beycioğlu et al (2015) experimentally investigated the relevant bond properties using Ø10 reinforcement bars in lightweight concretes containing pumice aggregate using the Standard Belgium Hinged Beam test method.…”

Section: Standard Belgium Hinged Beam Test (Sbhb)mentioning

confidence: 99%

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Yüksek Performanslı Hafif Betonlarda Donatı Çapı ile Aderans Gerilmesi Arasındaki İlişki

Tunç¹,

Alyamaç²,

İnce³

et al. 2021

European Journal of Science and Technology

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High performance lightweight concrete (HPLC) is a new and original research in structural engineering. Due to the high risk of earthquakes, which is one of the biggest disasters today, the need for HPLCs has increased. The purpose of this study is to experimentally research concrete-reinforcement bond for the change parameters such as different reinforcement diameters and different embedded lengths. For this purpose, HPLCs with different mix ratios and different concrete components were prepared by using pumice aggregates. Within this scope, HPLC beam specimens of 100×180×800 mm dimensions were prepared and produced specimens were subjected to the Standard Belgium Hinged Beam (SBHB) test. There are limited studies in the literature on the investigation of the bond properties of HPLC beams with this test. The mentioned study draws attention with this aspect. In the present study, ribbed steel reinforcement bars with different diameters were used. The beam specimens were produced considering the different embedded lengths for each reinforcement diameter. The bond tests were performed. Using the load applied vertically and read with the help of the load cell in the experiment, the bond stress occurring in the reinforcement was calculated with the help of the force in the reinforcement indirectly found. As a result of the experiments, it has been determined that there is a significant relationship between bond stress and reinforcement diameter and embedded length. It has been determined that the bond stress decreases with the increase of reinforcement diameter and embedded length.

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Section: Bond Stressmentioning

confidence: 99%

Section: Pull-out Testmentioning

confidence: 99%

Section: Standard Belgium Hinged Beam Test (Sbhb)mentioning

confidence: 99%

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Yüksek Performanslı Hafif Betonlarda Donatı Çapı ile Aderans Gerilmesi Arasındaki İlişki

Tunç¹,

Alyamaç²,

İnce³

et al. 2021

European Journal of Science and Technology

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“…A vast number of publications on lightweight concrete production by using different lightweight aggregate and mixture ratios are available. Beycioğlu et al carried out various experiments to determine the fastening performance of lightweight concrete which was produced by using pumice aggregates coated with colemanite-cement paste [13]. As a result of the study, they reported that colemanite-cement coated pumice aggregate increase significantly the compressive strength of lightweight concretes and fastening performance.…”

Section: Introductionmentioning

confidence: 99%

Effects of Borıc Acid Additive to Pumice Aggregate Lightweight Concrete Properties

2020

JSTR

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Pumice aggregates are used in the production of lightweight concretes due to their low density, good thermal and sound insulation characteristics as well as their admirable resistance against elevated temperatures. In this study, the effects of boric acid addition to pumice aggregate lightweight concrete at different ratios (Ref: 0%, 2%, 4% and 6%) were investigated. For this purpose; physical (dry unit weight, water absorption and porosity) and mechanical (compressive strength, tensile splitting strength) tests on produced lightweight concrete samples by boric acid-doped pumice aggregates were performed. Furthermore, SEM images were employed in the clarification (plainly) of the microstructure of produced boric acid-doped lightweight concrete (microstructure properties). As a result of this study, it was observed that the physical properties such as porosity and water absorption values decreased while the dry unit weight increased. Moreover, an increase in compressive strength and tensile splitting strength values of produced lightweight concrete was observed. SEM images were examined and the best results were obtained from the addition of boric acid at 6% ratio. Therefore, it was determined that the use of boric acid as an additive in the production of lightweight concrete improved (significantly) the physical and mechanical properties of the produced lightweight concrete.

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“…Cooling and hardening of lava yields a very light rock material filled with tiny bubbles of gas. Although its chemical composition varies depending on its origin, pumice is usually light‐colored, has silica content up to 75% and low iron and magnesium content with a cellular structure created by the explosion of volcanos and is widely utilized as a construction material owing to its insulation and lightweight properties . The Al 2 O 3 composition makes it heat‐resistant and fire‐resistant, and the SiO 2 content in the rock gives it an abrasive property.…”

Section: Introductionmentioning

confidence: 99%

High temperature effect on the mechanical behavior of steel fiber reinforced self‐compacting concrete containing ground pumice powder

Karataş

Dener

Benli

et al. 2019

Structural Concrete

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This study reports the results of high temperature effects on the properties of steel fiber reinforced self-compacting concrete (SFRSCC) fabricated by replacing cement with ground pumice powder (GPP) as mineral additive at different substitution rates. The mixtures had the same amounts of steel fiber and the binding material with constant water to binder (w/b) ratio of 0.37. In this context, five SFRSCC series were prepared by replacing Portland cement (PC) with 5, 10, 15, and 20% of GPP including the control mix. Sixty cube samples with a dimension of 150 × 150 × 150 mm were fabricated and exposed to curing aged 3, 7, 28, and 90 days to conduct compressive strength tests and a total of 100 × 100 × 350 mm 18 beam samples cured at 28 days were fabricated to perform the flexural strength tests. Durability tests were performed on the 18 cube samples of 100 × 100 × 100 mm subjected to water curing at 28 days. In addition, the relation between the compressive strength and Ultrasonic Pulse Velocity (UPV) of SFRSCC samples was compared aged 1, 3, 14, and 28 days. Samples of SFRSCC were subjected to the temperatures of 200, 400, 600, and 800 C after being cured at 28 days then cooled to room temperature before conducting tests. The results revealed that the compressive strength of all SFRSCC mixes enhanced at 200 C by 5.34 and 3.55% for control and GPP10 mixes respectively. The strength loss of mixes incorporating GPP is about 60% at 800 C. K E Y W O R D Scompressive strength, elevated temperature, ground pumice powder, steel fiber reinforced selfcompacting concrete, UPV

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Bond behavior of lightweight concretes containing coated pumice aggregate: hinged beam approach

Cited by 6 publications

References 12 publications

Yüksek Performanslı Hafif Betonlarda Donatı Çapı ile Aderans Gerilmesi Arasındaki İlişki

Yüksek Performanslı Hafif Betonlarda Donatı Çapı ile Aderans Gerilmesi Arasındaki İlişki

Effects of Borıc Acid Additive to Pumice Aggregate Lightweight Concrete Properties

High temperature effect on the mechanical behavior of steel fiber reinforced self‐compacting concrete containing ground pumice powder

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