PRODUCTION OF ULTRA HIGH-STRENGTH CONCRETE USING LOCAL MATERIALS | ||
| ERJ. Engineering Research Journal | ||
| Article 10, Volume 36, Issue 1, January 2013, Pages 91-100 PDF (597.83 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erjm.2013.67055 | ||
| Authors | ||
| M. .M. Kamal1; M. A. Safan1; Z. A. Etman1; R. A. Salam2 | ||
| 1Department of Civil Engineering - Faculty of Engineering- Menofiya University | ||
| 2Ministry of irrigation and public works. | ||
| Abstract | ||
| The current research intends to study the possibility of producing ultra high strength concrete using local materials in the Egyptian market. The effect of silica fume, quartz powder, steel powder, steel fibers, type and dosage of superplacitizers were investigated in forty nine different concrete mixes. The effect of the variables were considered and investigated. Three percentages of silica fume (10%, 15% and 20 %) were applied as a replacement of cement content. Quartz powder with a percentage of 10% of sand content was considered. Steel Powder with a percentage of 10 % of sand content was used. Also, different types of high range water reducer ranged from (0.5 to 2%) by weight of powder (cement and filler) were used. The weight of the steel fibers was 40 and 80 kg/m3 .The water content was determined by trail mixes and the water-to-powder ratio (w/p) was in the rang of (0.2 - 0.45). The results indicated the possibility of using local materials in the Egyptian market in producing ultra high strength concrete. The use of 10% silica fume as a replacement of cement content and 30% water per powder resulted in compressive strength after 3, 7 and 28 days 43 MPa, 67.4 MPa and 127 MPa, respectively. Moreover, using the steel fibers with 40 kg/m3 increased the compressive strength 64.3 Mpa, 88.0 Mpa, and 135 MPa at 3, 7 and 28 days, respectively | ||
| Keywords | ||
| Quartz; Dolomite; Silica Fume; Steel powder; Superplasticizers; Ultra high strength; Steel fibers | ||
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