Concrete containing polypropylene foam has been playing a growing role in construction , specifically in foundation piles , pre - stressed concrete , piers , walls , industrial floors , bridge decks , facing panels , flotation units for buildings and heavyweight coatings for underwater pipes . One application is in thin sheet components in which polypropylene provides the primary reinforcement. Benefits include structural toughness , flexural strength , tensile strength and impact strength . It usually takes up 0.3 % to 1.5 % of the final product by volume .
Concrete containing polypropylene foam has been playing a growing role in construction , specifically in foundation piles , pre - stressed concrete , piers , walls , industrial floors , bridge decks , facing panels , flotation units for buildings and heavyweight coatings for underwater pipes . Benefits include structural toughness , flexural strength , tensile strength and impact strength . It usually takes up 0.3 % to 1.5 % of the final product by volume .