| Title: |
Development of Modified Concrete Containing Rice Husk Ash and Steel Fiber |
| Authors: |
Prof. Dr. Hussam Ali Mohammed, Hassan Mohammed |
| Source: |
International Journal of Latest Research in Engineering and Management, pp 01 - 06, Vol 10 - No. 02, 2026 |
| Abstract: |
This article discusses and assesses concrete modified with rice husk ash and steel fiber with respect to standard concrete. Rice husk ash was used as a partial replacement of cement, and steel fiber was used to improve the internal mechanical performance of the concrete. The analysis was limited to slump and compressive strength tests. Results indicated lower slump values of the modified mix compared to the control mix, reflecting reduced workability. Nevertheless, at both 7 and 14 days, the compressive strength of modified concrete exceeded that of conventional concrete. The changed mix reached 34.5 MPa at 7 days and 43.8 MPa at 14 days, compared with 29.8 MPa and 37.2 MPa of the control mix. The results suggest that both rice husk ash and steel fiber can be effectively used to manufacture concrete stronger and more environmentally friendly material
|
 |
Download Full Article |
| Title: |
Development of Modified Lightweight Concrete using Nano Silica: Effect on Slump and Compressive Strength |
| Authors: |
Prof. Dr. Hussam Ali Mohammed, Naseer jaber abdelsada |
| Source: |
International Journal of Latest Research in Engineering and Management, pp 07 - 12, Vol 10 - No. 02, 2026 |
| Abstract: |
This work describes a novel lightweight concrete with nano silica as an innovative cementitious material. Lightweight concrete slump and compressive strength comparison has been studied with a control lightweight concrete mix. Lightweight concrete is preferred for structural applications because of its low dead load, while nano silica acts as a catalyst to enhance the cement matrix and the interfacial transition zone. According to the proposed mix design by this investigation, the slump of the optimized lightweight concrete is relatively lower than that of the control mix owing to the high fineness of nano silica. That is because the compressive strength was increased at 7 and 14 days. The slump of the control mix was 78 mm, and its compressive strengths were 25.6 MPa and 31.8 MPa at 7 and 14 days, respectively. The modified mix obtained a slump of 70 mm, compared with 30.4 and 37.9 MPa of the compressive strengths at 7 and 14 days, respectively. Based on the results, nano silica appears to be effective in providing good mechanical and engineering properties of lightweight concrete combined with satisfactory workability.
. |
| Kaywords: |
Lightweight concrete; Nano silica; Modified concrete; Slump; Compressive strength; Lightweight aggregate. |
|
Download Full Article |
