Utilization of High Calcium Content Fly Ash: Flexural Strength of Geopolymer Concrete Beams in Sea Water Environment

Bayuaji, Ridho; Darmawan, Muhammad Sigit; Wibowo, Boedi; Husin, NA; Subekti, Srie

doi:10.2174/1874149501610010782

Cited by 12 publications

(12 citation statements)

References 18 publications

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“…On the contrary, it was noted that the cracking load for beams exposed to seawater at splashing zone was 275% higher than the cracking load of beams hardened in room temperature. However, the ultimate load, crack pattern and deflection characteristic for both conditions (marine and room temperature) were very similar [84].…”

Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 80%

“…These beams were placed in a splashing zone at Suramadu Bridge Surabaya (Indonesia). These authors [84] concluded that from test results after 28 days of exposure, the seawater environment had almost no effect on compressive and splitting tensile strength of fly ash-based geopolymer concrete. On the contrary, it was noted that the cracking load for beams exposed to seawater at splashing zone was 275% higher than the cracking load of beams hardened in room temperature.…”

Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 98%

“…Bayuaji et al [84] analysed the effects of marine environment on compressive and flexural strength of geopolymer concrete beams with high content of fly ash, without high heat curing. These beams were placed in a splashing zone at Suramadu Bridge Surabaya (Indonesia).…”

Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 99%

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From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

et al. 2018

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Abstract:The breakwater construction technique using floating concrete caissons is well-known nowadays as a widespread system. Yet do we really know its origin? Since Julius Caesar used this technology in Brindisi (Italy) up to the Normandy landings in June 1944, not only has this technology been developed, but it has been a key item in several moments in history. Its development has almost always been driven by military requirements. The greatest changes have not been conceptual but point occurring, backed by the materials used. Parallelisms can be clearly seen in each new stage: timber, opus caementitium (Roman concrete), iron and concrete . . . However, nowadays, achieving a more sustainable world constitutes a major challenge, to which the construction of caissons breakwaters must contribute as a field of application of new eco-friendly materials. This research work provides a general overview from the origins of caissons until our time. It will make better known the changes that took place in the system and their adaptation to new materials, and will help in clarifying the future in developing technology towards composite sustainable materials and special concrete. If we understand the past, it will be easier to define the future.

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Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 80%

Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 98%

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From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

et al. 2018

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“…However, due to the relatively short period of carbonation, the difference in carbonation depth was marginal, and the carbonation depth was smaller than the thickness of concrete cover to reinforcement. 107 Bayuaji et al investigated the effects of the marine environment on the flexural strength of reinforced fly ash-based geopolymer concrete beams (100 ×150 ×1500 mm). After cured in the seawater at the seashore for 28 days, the geopolymer concrete beams were loaded by flexural load under four-point bending test and then test results were compared with those of the geopolymer concrete beams cured at room temperature as shown in Fig.…”

Section: Reinforced Alkali-activated Concrete Beams 106mentioning

confidence: 99%

A Review on Durability of Alkali-activated System from Sustainable Construction Materials to Infrastructures

Li¹,

Tang²,

Tam³

et al. 2020

ES Mater.Manuf.

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With growing concerns for greenhouse gas emissions, alkali-activated materials (AAMs) have received significant attention due to the benefit of low carbon footprint. In the process of promoting large-scale and commercialized applications of AAMs, one of the most significant concerns is the long-term durability. This work presents a critical review on the durability performance of alkali-activated system. At the material level, this work reviews factors influencing the mass transport properties of AAMs, and effects of a number of factors such as chemical activators, raw materials, curing regimes, and exposure environments on the durability of AAMs subjected to both physically and chemically induced deterioration. At the structure level, the durability performance of structures made from AAMs, including beam, slab, box culvert, and repairing materials and protection coating under extreme conditions are reviewed. The review indicates that AAMs have potentials to manufacture durable materials by appropriate selection of raw materials, chemical activators and optimization of mixing design. Furthermore, perspectives are proposed for the further study on the durability of AAMs at both material and structure levels. The related results are of interest to the research community as well as to the stakeholders of AAMs industries who seek sustainability in their products.

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“…The use of local materials to support the infrastructure needs of the sea needed to be examined to indicate that local material in Indonesia had the potential to be used as building materials and structural materials, as conducted by the previous research [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Clamshell on Mechanical Properties of Non-Structure Concrete as Artificial Reef

Bayuaji¹,

Akhwady

2017

AJAS

Self Cite

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Clamshell waste had higher chemical content of Calcium Carbonate (CaCO3) than the limestone, egg shells, ceramic, or other materials. These physical properties gave the potential for material substitution as coarse aggregate in concrete artificial reefs. In addition, the utilization of leather waste in concrete structures could function as taxis for fish in the vicinity. This study utilized two types of coarse aggregate (filler) which were crushed stone and/or clamshell waste of the blood clamshells and kurkur clamshells. The test was to identify the mechanical properties of concrete artificial reef namely: Hammer test (ASTM C805), abrasion test (ASTM C779), the pressure test (SNI 03-1974-1990), split tensile test (ASTM C496 / C496M-11), Ultrasonic Pulse Velocity (UPV) test (ASTM C597-16), Porosity test (C642-13), permeability test (SN 505 252/1). The Concrete mixing is conducted according to SNI 03-2834-2000 standard and quality standard of solid concrete brick (SNI 03-0349-1989). Before the test, the concrete soaked in fresh water and sea water and left in the open air until 28 days. The results showed that the use of clamshell waste as filler had potential as a concrete compressive strength of non-structure approaches to the quality of solid concrete brick, as artificial reef material..Â

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Utilization of High Calcium Content Fly Ash: Flexural Strength of Geopolymer Concrete Beams in Sea Water Environment

Cited by 12 publications

References 18 publications

From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

A Review on Durability of Alkali-activated System from Sustainable Construction Materials to Infrastructures

The Influence of Clamshell on Mechanical Properties of Non-Structure Concrete as Artificial Reef

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