Effect of Incorporating Nanoporous Metal Phosphate Materials on the Compressive Strength of Portland Cement

Table 1

Material specifications and composition.

Material	Specifications	Specified field composition	Mass-normalized field specified composition	Material specifications used in revised laboratory mix comparison	Mass-normalized laboratory composition
Cement	Portland Type I or Type I/II sulfate-resistant cement	381 kg/m^3	0.27	Portland Type I and II	0.27
Fly Ash	Class F fly ash; nominal 15% of cement by volume	54 kg/m^3	0.04	Class F fly ash; nominal 20% of cement by volume	0.04
Coarse aggregate	no. 676 or equivalent (3/4” nominal size)	55% by volume	0.04	—	—
Fine Aggregate	Sand	45% by volume	0.51	<2 mm sand	0.51
Water	Nominal water:cement ratio: 0.4	399 kg/m^3	0.10	Water-to-cement ratio: 0.5	0.13
Steel Fiber	Deformed Type I, nominal length 2.5–3.8 cm (1–1.5”)	59 kg/m^3	0.04	Iron Particles, −200 mesh	0.04
Air Content	—	$6.0\pm 1.5$%	—	—	$6.0\pm 1.5$%
Polyheed 997	—	—	—	Water-entraining agent	0.007