Improvement of the Early-Age Compressive Strength, Water Permeability, and Sulfuric Acid Resistance of Scoria-Based Mortars/Concrete Using Limestone Filler

Table 3

Compressive strength development of mortars.

Mix type	Compressive () strength of mortars (MPa), normalized
	2 days’ curing	7 days’ curing	28 days’ curing	90 days’ curing
VS0LF0	20.6–100%	39.6–100%	48.7–100%	54.9–100%
VS0LF5	20.5–100%	38.9–98%	48.9–100%	54.5–99%
VS0LF10	19.9–97%	37.1–94%	46.6–96%	52.8–96%
VS0LF15	14.8–72%	32.6–82%	44.1–91%	49.1–89%
VS10LF0	16.2–79%	32.1–81%	45.9–94%	54.2–99%
VS10LF5	15.7–76%	31.7–80%	45.5–93%	53.4–97%
VS10LF10	14.6–71%	29.1–73%	42.1–86%	50.5–92%
VS10LF15	10.4–51%	27.3–69%	36.8–76%	45.4–83%
VS20LF0	11.9–58%	28.9–73%	39.1–81%	49.1–89%
VS20LF5	11.9–58%	28.0–71%	37.9–78%	48.2–88%
VS20LF10	11.6–56%	27.6–70%	37.5–77%	48.1–88%
VS20LF15	8.8–43%	23.1–58%	33.5–69%	43.3–79%
VS30LF0	8.3–40%	24.1–61%	34.4–71%	47.8–87%
VS30LF5	8.4–41%	23.3–59%	33.5–69%	44.2–81%
VS30LF10	7.8–38%	21.8–55%	31.4–64%	42.3–77%
VS30LF15	6.9–34%	18.6–47%	26.8–55%	38.8–71%