Follow along for a hands-on demonstration of expansive demolition grout in action. Watch the full process: drilling, mixing the 5 kg powder with 1.2 kg water, pouring, and the critical re-watering method that triggers a second expansion for wider cracking. See real results on rock and reinforced concrete—no noise, no vibration, no blasting permit—and learn the exact steps to boost breaker efficiency and cut costs on your next job.