12 小时
Sciencing on MSNUsing Coffee Grounds In Concrete Has An Unexpected EffectThe world drinks a lot of coffee, which comes at the cost of a lot of coffee waste, but we may have found a way to use it in ...
Scanning electron microscopy (SEM) provided further insights into the concrete’s microstructure. SEM analysis showed that PTF microfibers increased porosity due to fiber clumping and limited ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果