Mechanical Properties of Ultra-High Performance Concrete (UHPC) and Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC) with Recycled Sand

International Journal of Concrete Structures and Materials

Table 10 Summary of compressive strength development, flexural strength and elastic modulus (unit: MPa)

Index	Compressive strength			Flexural strength	Index	Compressive strength			Flexural strength
Index	7d	28d	Elastic modulus	Flexural strength	Index	7d	28d	Elastic modulus	Flexural strength
NS-U-20	60.2	90.1	43,773	11.1	NS-U-16	63.7	112	48,043	13.5
RS-U-20	64.4	86.3	37,355	8.38	RS-F-17-1.0	75.6	100	43,506	9.41
RS-U-18	65.0	87.4	35,544	10.6	RS-F-17-2.0	84.5	128	46,867	11.9
RS-U-17	65.5	102	40,153	11.0	RS-F-17-3.0	84.5	113	46,645	18.1
RS-U-16	60.7	97.4	41,231	8.12	RS-F-16-2.0	89.6	108	47,502	14.0