Investigation of Water Absorption for Concrete Using Supplementary Materials

Ghewa, Gabriel; Suprobo, Priyo; Irawan, Djoko Windu P.; Sutrisno, Wahyuniarsih; Tambusay, Asdam

doi:10.12962/j20882033.v31i3.5596

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…It was discovered that the scatter plots had a moderate correlation, indicating that there is no obvious relationship between these parameters. According to Ghewa et al [25], the concrete with a higher WC ratio has large pores within the specimens, causing it to absorb a signi cant amount of water, which in turn reduces its strength.…”

Section: Correlation Between Compressive Strength and Watermentioning

confidence: 99%

Evaluating the Impact of Water-Cement Ratios on the Compressive Strength and Water Absorption of Coal Bottom Ash Concrete

Meh,

Omar

2024

Preprint

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Coal Bottom Ash (CBA) is an industrial byproduct generated in significant quantities due to increased power consumption. Utilizing CBA as a sand replacement in concrete is considered a promising innovation for producing environmentally friendly concrete. However, determining the precise water-cement (WC) ratio is challenging due to the highly porous nature of CBA. This study examines the impact of WC ratio on the compressive strength and water absorption of CBA concrete. Concrete samples with WC ratios of 0.40, 0.45, and 0.50, incorporating 0%, 10%, and 20% CBA replacement, were evaluated. Results indicated that an increase in both CBA percentage and WC ratio led to a decrease in compressive strength and an increase in water absorption. However, with extended curing periods, compressive strength improved, and water absorption decreased. The target strength of CBA concrete was achievable with up to 20% CBA and a WC ratio between 0.40 and 0.45. A significant correlation between compressive strength and water absorption was identified for WC ratios of 0.40 and 0.45, as evidenced by the correlation coefficient (R2). Conversely, the R2 value for a WC ratio of 0.50 showed no clear relationship between these factors.

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Section: Correlation Between Compressive Strength and Watermentioning

confidence: 99%

Evaluating the Impact of Water-Cement Ratios on the Compressive Strength and Water Absorption of Coal Bottom Ash Concrete

Meh,

Omar

2024

Preprint

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“…Gupta examined the fracture behavior of rubberized concrete beams with different water to cement ratios ranging from 0.35 to 0.55, and the fracture parameters were determined using fracture and size effect methods [6]. Ghewa GJP and Suprobo P discovered that brittleness number, fracture toughness, and total fracture energy increased, while both the effective crack tip slot displacement at maximum load and fractures decreased [7].…”

Section: Introductionmentioning

confidence: 99%

Properties of Rubberized Concrete Prepared from Different Cement Types

Idriss¹,

Gamal

2022

Recycling

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At present, global waste tire generation considerably exceeds consumption. Moreover, waste rubber tires (WRTs) are a cause of concern, as huge volumes are being discarded and buried, thus causing serious environmental pollution. Rubberized waste concrete (RWC) is a type of environmentally friendly construction material. The main challenge encountered when manufacturing rubberized concrete is the low adhesive properties between the cement paste and rubber particles. This paper demonstrates the effects, through experiments, of using waste tire rubber instead of recycled coarse aggregate (RCA) on two types of cement, i.e., sulfate-resistant cement (SRC) and ordinary Portland cement (OPC), where SRC is a specially blended cement designed to improve concrete performance and workability in the most aggressive environments. All tested samples contained 10% silica fume (SF) and 0.2% fly ash (FA), and the substitution of recycled aggregate content with waste rubber tier (WRT) at different percentages of 100%, 75%, and 50% was evaluated .The research investigated the synergistic effect on the workability and mechanical properties of various cement types with different amounts of rubber aggregate . It was found that the sulfate-resistant (SRC)type can increase the compressive strength than OPC with a percentage of 25% with the same content of WRT at concrete mix. Moreover, ductility and cracking behavior are improved, and it appears that it is also possible to make lightweight rubber aggregate concrete with this type of mixture. Using this type of cement, it is possible to restore satisfactory ductility to the waste tires, thus facilitating a reduction in the formation of potential plastic cracks. Moreover, the indicative compressive strength development for SRC with recycled rubber in concrete positively contributes to a reduction in formed cracks. However, SEM microstructural analyses suggest a higher proportion of C–S–H intermixed with sulfate reaction phases of SRC rubberized mortar than those of OPC; thus, given that crystal growth results in a decreased percentage of air voids rather than decreased internal cracking, it is clearly shown that the average crack width increases in OPC mortar compared with SRC. Finally, t-testing was used as an inferential statistical tool to determine whether there is a sizeable distinction between the properties of the two categories of materials, OPC and SRC, by comparing the mean and standard deviation of the values for compressive and tensile strength.

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“…• Lower water absorption level with obviously still lower compressive strength than in the reference concrete and composites with CFA content below 30% [64,91,92,94].…”

mentioning

confidence: 96%

The Effect of the Addition of Coal Fly Ash (CFA) on the Control of Water Movement within the Structure of the Concrete

Golewski

2023

Materials

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Studies were carried out to find a relation between the important physical property, i.e., water absorption and the main mechanical parameter, i.e., compressive strength (fcm), of concretes containing coal fly ash (CFA) in the amounts of 0% (CFA-00), 20% (CFA-20%), and 30% (CFA-30). The methodology of the water absorption tests reflected the conditions prevailing in the case of reinforced concrete structures operating below the water table. The microstructure of all materials was also assessed. Based on the conducted studies, it was found that both the fcm of concretes with the addition of CFA and its water absorption depended on the percentage of waste used, whereas both analyzed parameters were closely related to the structure of the cement matrix and interfacial transition zone area between the coarse aggregates and the paste. It should be stated that at the content of 20% CFA in the binder composition, an increase in the fcm of the material is observed, with a simultaneous increase in its water absorption. On the other hand, the addition of 30% CFA results in a significant decrease in both the strength of the composite and its water absorption. Thus, it was found that in the case of concretes with the addition of CFA, the strength of the material is directly proportional to the level of its water absorption. Moreover, the concrete including 30% CFA may increase the durability of reinforced concrete structures subjected to immersion conditions. From an application point of view, the obtained research results may be helpful in understanding the impact of the CFA additive on the level of water absorption in cement concretes with this waste.

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Investigation of Water Absorption for Concrete Using Supplementary Materials

Cited by 6 publications

References 12 publications

Evaluating the Impact of Water-Cement Ratios on the Compressive Strength and Water Absorption of Coal Bottom Ash Concrete

Evaluating the Impact of Water-Cement Ratios on the Compressive Strength and Water Absorption of Coal Bottom Ash Concrete

Properties of Rubberized Concrete Prepared from Different Cement Types

The Effect of the Addition of Coal Fly Ash (CFA) on the Control of Water Movement within the Structure of the Concrete

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