Concrete Cube Test | Step-by-Step Explanation | Civil Engineering Explained

How do we know whether concrete has achieved the required strength? 🏗️ In Construction Diary #2, we take you inside a real construction site and explain the Concrete Cube Test—one of the important tests used to evaluate the compressive strength of concrete. In this video, we cover the process from sampling fresh concrete to cube preparation, curing and compression testing, along with the basic calculation used to determine compressive strength. 🔍 In this video: 00:00 — Introduction 00:15 — What is a Concrete Cube Test? 01:00 — Concrete sampling 01:45 — Cube mould preparation 02:30 — Compaction & finishing 03:15 — Cube identification 03:40 — Curing 04:20 — 7-day & 28-day testing 05:00 — Compression Testing Machine 05:50 — Strength calculation & result interpretation 06:30 — Safety during testing 👷 Construction Diary Team: Shaad Baari — QA/QC Shivam Yadav — Safety Aryan Chauhan — Engineer 📐 Basic formula: Compressive Strength = Maximum Load ÷ Loaded Area Construction Diary documents real construction work, engineering practices, quality control, safety and lessons from the field—from foundation to finish. If you found this video useful, LIKE 👍 | COMMENT 💬 | SUBSCRIBE 🔔 CONSTRUCTION DIARY Real Sites. Real Engineering. Real Progress. ⚠️ Disclaimer: This video is for educational and documentation purposes. Testing procedures, sampling, curing and acceptance criteria should follow the applicable project specifications and relevant standards. Concrete acceptance should not be determined from an isolated result without considering the specified testing and acceptance requirements.