Research Article
Experimental Study of Hollow RC Beams Strengthened by Steel Fiber under Pure Torsion
Table 1
Chemical properties of cement [
16].
| Composition of cement | (%) | Specification limit |
| (CaO) | 62.83 | | SiO2 | 22.54 | | AL2O3 | 5.4 | | Fe2O3 | 2.64 | | MgO | 3.23 | 5% | SO3 | 2.45 | 2.8% | (Na2O) | 0.24 | | (K2O) | 0.62 | | (L.O.I) | 0.71 | 4.00 (max.) | (I.R) | 0.57 | 1.50 (max.) | (L.S.F) | 0.91 | 0.66–1.02 |
| Cement compound | C4AF | 7.93 | 7.72–8.02 | C3A | 10.21 | 11.96–12.3 | C2S | 33.65 | 28.61–37.9 | C3S | 38.51 | 31.03–41.05 |
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