The Specificity of Shaping and Execution of Monolithic Pocket Foundations (PF) in Hall Buildings

Golewski, Grzegorz Ludwik

doi:10.3390/buildings12020192

Cited by 30 publications

(11 citation statements)

References 56 publications

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“…A calcium lignosulfonate-based plasticizer (P), Basf Liquol BV-18, used in this study had a density of 1.16 g/cm 3 and a dosing range of 0.1-1.0% of the mass of cement. The plasticizer was used in an amount of 0.6% of the mass of the binder.…”

Section: Admixturementioning

confidence: 99%

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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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Section: Admixturementioning

confidence: 99%

“…Construction is a fast-growing industrial sector that meets the current trends of industrialization and infrastructure development [1][2][3]. Concrete, on the other hand, is a structural material constituting a module inseparably related to this area of the economy [4,5].…”

Section: Introductionmentioning

confidence: 99%

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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“…According to [3], it depends on the properties of the subsoil. It can be, e.g., in the form of a linear function (6).…”

Section: Introductionmentioning

confidence: 99%

Analiza naprężeń w żelbetowych filarach w zależności od sztywności podłoża gruntowego

Jendzelovsky

2024

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Section: Introductionmentioning

confidence: 99%

Examination of water absorption of low volume fly ash concrete (LVFAC) under water immersion conditions

Golewski

2023

Mater. Res. Express

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The studies were carried out to find a relation between important physical property and the main mechanical parameter of concretes containing fly ash (FA) in order to develop indications for the production of durable composites with the addition of this waste. The tests included low volume fly ash concrete (LVFAC). The cements used in the studies were following: ordinary Portland cement (OPC), (FA-00) and two blended Portland cements containing FA in the amount of: 20%, (FA-20) and 30% (FA-30). Measurements of water adsorption (wa) by immersion and compressive strength (fcm) of analysed composites have been performed. The methodology of the wa tests was to reflect the conditions prevailing in the case of concrete- and reinforced concrete structures operating below the water table. The microstructure of all three materials was also assessed. Test results indicated that LVFAC mixes developed 28-day fcm between 45.10 for FA-30 to 48.96 MPa for FA-20 with a value of 47.51 MPa for the reference concrete. Neverless wa of LVFAC mixes decreased with the increase in FA content. The average values of wa was 4.6% for FA-30 and 5.3% for FA-20, respectively, while for concrete without FA it was 5.0%. Thus, it was found that wa by immersion was inversely proportional to the fcm. Based on the microstructural studies it was found that this behavior is attributed to reduced pore diameters and densification of cement matrix microstructure in FA-30 concrete. On the other hand concrete of series FA-20 showed a loose and porous microstructure, and wa in this composite increased accordingly. It can be stated that, the LVFAC containing 30% FA may increase durability of reinforced concrete structures subjected to immersion conditions.

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The Specificity of Shaping and Execution of Monolithic Pocket Foundations (PF) in Hall Buildings

Cited by 30 publications

References 56 publications

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

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

Analiza naprężeń w żelbetowych filarach w zależności od sztywności podłoża gruntowego

Examination of water absorption of low volume fly ash concrete (LVFAC) under water immersion conditions

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