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USING LOCAL IRAQI MATERIALS IN PRODUCTION OF REFRACTORY BONDING MORTAR | ||
| KUFA JOURNAL OF ENGINEERING | ||
| Article 1, Volume 9, Issue 2, 2018, Pages 91-102 | ||
| Authors | ||
| Katreen E. Al Hwaidy; Osama A. Eedan; Shatha S. Hassan | ||
| Abstract | ||
| The Iraqi kaolin clay was used as a raw material in this research. three mix proportion was applied, (96:4), (93:7) and (90:10) as (kaolin grog: kaolin binding ). The specimens of mortar were burning at 1500ᵒC, after producing a refractory aggregate (grog) by preparation process mixing with sodium silicate solution as adhesive material with 5% by weight of the mix. The mechanical tests were carried (compressive and bonding) strength, durability investigations (thermal shrinkage, and reheating expansion), and the physical investigation was carried (bulk density, specific gravity, apparent porosity and water absorption). It was found the first mix (96:4) recorded the highest compressive strength befor burning and bonding after burning, and the best physical properties after burning at 1500 ºC, with mix proportion (96: 4), while the highest compressive strength after burning were the mix three (90: 10). | ||
| Keywords | ||
| kaolin; sodium silicate; reheating expansion; grog; compressive strength | ||
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