Compressive Strength of Concrete Made from Different Aggregates - Softcover

Abdulrazaq, Ibrahim; Balqees, Mahmud; Abubakar, Gowon

Softcover

ISBN 10: 3659599077 ISBN 13: 9783659599071

Publisher: LAP Lambert Academic Publishing, 2024

Synopsis

The study used a 1:2:4 mix design and a water-cement ratio of 0.5. Wooden square cubes of dimensions 100 x 100 x 100 mm were employed, resulting in 42 concrete cubes.Tests were conducted to assess particle size distribution, specific gravity, bulk density, aggregate impact value, aggregate abrasion value, and compressive strength at 7th and 28th days of curing. Notably, after 7 days, compressive strength results showed that concrete with a 10% iron fillings replacement (18.5 N/mm²) had a higher average strength than concrete with 100% river sand (17.6 N/mm²). However, as the percentage of iron fillings increased to 20% (9.8 N/mm²) and 30% (7.1 N/mm²), the compressive strength decreased. On the other hand, concrete with sawdust replacements at 10% (3.7 N/mm²), 20% (1.4 N/mm²) and 30% (0.5 N/mm²) exhibited significantly lower load-bearing capacity. These trends persisted at the 28th day, with the compressive strength decreasing with increasing percentages of iron fillings (10%: 20.3 N/mm², 20%: 11.2 N/mm², 30%: 11.6 N/mm²) & sawdust (10%3.4 N/mm², 20%: 2.3 N/mm², 30%: 1.4 N/mm²). The findings suggest that a low percentage of iron fillings can be used in combination with river sand.

Edition details

• Publisher: LAP Lambert Academic Publishing
• Publication date: 2024
• Language: English
• ISBN 10: 3659599077
• ISBN 13: 9783659599071
• Binding: Paperback
• Number of pages: 76