How Construction Chemicals Improve Concrete Strength
At a mid-rise construction project , engineers encountered an unexpected challenge. The concrete mix design met every required standard on paper, yet early cube tests revealed lower-than-expected compressive strength. The aggregates were clean, the cement was fresh, and the water-cement ratio was carefully controlled. So what went wrong? The issue was not what the mix contained—but what...
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After 11 Years in a North Korean Prison, Church Leader Finally Freed

In a rare and hopeful development from North Korea, a Christian church leader from China has been released after spending more than a decade behind bars for his faith and humanitarian work.