Make these easy DIY concrete candle holders using plastic bottles – the results are kind of amazing . . . I love my new ...

Concrete is an incredibly versatile material and also one that deserves a lot more attention especially when it comes to diy projects such as the ones described in this video. Using concrete mix you ...

Jianzhuang Xiao is a professor of recycled concrete materials and structures at Tongji University, Shanghai, China, and a vice-president at Guangxi University, Nanning, China. Zongjin Li is a ...