Construction and Building Materials, Год журнала: 2025, Номер 483, С. 141339 - 141339
Опубликована: Май 13, 2025
Язык: Английский
Construction and Building Materials, Год журнала: 2025, Номер 483, С. 141339 - 141339
Опубликована: Май 13, 2025
Язык: Английский
Materials, Год журнала: 2025, Номер 18(4), С. 835 - 835
Опубликована: Фев. 14, 2025
To study the impact of limestone powder (LP) fineness on physical and mechanical characteristics concrete, a total 88 sets LP concrete mixtures were designed, in which content (0~35% mass cementitious materials), LP-specific surface area (350-1000 m2/kg), water-binder ratio used as testing factors. The experimental theoretical approaches performed to (slump) properties (compressive strength bond-slip behaviors with steel bars) concrete. Secondly, compressive activity index (CAI) was introduced measurement for quantifying LP. results indicate an optimal improvement when is equal or less than 15% specific 600 m2/kg. An increase will result drop bond between bars; contrast, enhance strength. Furthermore, CAI can better reflect role provides basis application
Язык: Английский
Процитировано
2Construction and Building Materials, Год журнала: 2025, Номер 467, С. 140392 - 140392
Опубликована: Фев. 15, 2025
Язык: Английский
Процитировано
1REM - International Engineering Journal, Год журнала: 2025, Номер 78(spe1)
Опубликована: Янв. 1, 2025
Abstract The extraction of sand from riverbeds through dredging is a common practice in construction and has given rise to significant environmental repercussions. Sand removal contributes heightened turbidity alterations watercourses, reshaping the original channels due equipment utilization, disrupting their flow. In response these challenges, crushed stone dust emerges as sustainable alternative material for partially or entirely replacing natural concrete production. This study aimed evaluate mechanical properties workability with characteristic compressive strength 25 MPa, employing total replacement (100% dust) partial (50% 50% sand). materials utilized encompassed stone, sand, Portland cement CP II F - 32, dust, superplasticizer additive. results indicated no difference (P < 0.05), values 36.85 MPa 30.31 replacement, respectively, comparable reference (33.47 MPa). terms tensile by split testing, achieved 3.09 3.23 while mix recorded 3.31 MPa. Total posed challenges fresh concrete, necessitating higher dosage superplasticizer. conclusion, demonstrates its capacity substitute either partially, upholding traditional concrete. However, careful consideration impact on essential when opting fine aggregate.
Язык: Английский
Процитировано
0Structures, Год журнала: 2025, Номер 77, С. 109169 - 109169
Опубликована: Май 11, 2025
Язык: Английский
Процитировано
0Construction and Building Materials, Год журнала: 2025, Номер 483, С. 141339 - 141339
Опубликована: Май 13, 2025
Язык: Английский
Процитировано
0