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

Table 4

Compressive strength development of concrete.

Mix type	Compressive () strength of concrete (Mpa), normalized
	2 days’ curing	7 days’ curing	28 days’ curing	90 days’ curing
VS0LF0	18.1–100%	34.3–100%	42.1–100%	47.9–100%
VS0LF5	18.2–101%	34.2–100%	41.3–98%	46.5–97%
VS0LF10	17.8–98%	33.3–97%	40.0–95%	45.5–95%
VS0LF15	13.3–73%	27.2–79%	35.9–85%	49.1–86%
VS10LF0	14.6–80%	28.1–82%	40.1–95%	46.9–98%
VS10LF5	13.9–77%	28.0–82%	39.4–94%	46.0–96%
VS10LF10	13.2–73%	26.0–76%	36.8–87%	43.2–90%
VS10LF15	9.7–54%	22.7–66%	31.3–74%	37.8–79%
VS20LF0	10.5–58%	23.3–68%	34.2–81%	43.7–91%
VS20LF5	10.8–60%	24.7–72%	34.5–82%	43.6–91%
VS20LF10	10.7–59%	23.4–68%	33.7–80%	43.1–90%
VS20LF15	8.1–45%	19.0–55%	30.4–72%	38.6–81%
VS30LF0	7.7–43%	20.6–60%	32.3–77%	47.8–89%
VS30LF5	7.7–43%	19.3–56%	30.3–72%	40.1–84%
VS30LF10	7.4–41%	17.6–51%	29.1–69%	38.6–81%
VS30LF15	6.7–37%	14.9–43%	24.9–59%	35.6–74%