In order to explore the frost-resistance mechanism of multi-scale polypropylene-fibre-
reinforced concrete (PFRC), the mass loss rate and relative dynamic elastic modulus …

Polypropylene fiber reinforcement is an effective method to enhance the durability of
concrete structures. With the increasing public interest in the widespread use of …

In order to study the effect of polypropylene fibers on the frost resistance of natural sand and
machine-made sand concrete, polypropylene fibers (PPF) of different volumes and lengths …

Mixing fiber into manufactured sand to prepare concrete can effectively reduce the
consumption of natural sand resources, improve concrete performance, improve the life of …

Many major engineering projects have been building in cold regions, and concretes would
be inevitably cured under low-temperature conditions. In this study, the influences of curing …

Compressive tests, tensile tests, and scanning electron microscopy (SEM) tests were
performed on polypropylene fiber recycled concrete (PFRC) after freeze–thaw cycles. The …

More engineering infrastructures have been built in cold regions and even permafrost area
with salt-rich media, such as seawater, saline soil or groundwater. In such environment, the …

The degradation of the concrete pore structure is a major concern among scholars due to its
negative impact on durability. This study conducted a salt freezing test on polyacrylonitrile …

Based on the fast freeze-thaw test in 3.5% NaCl solution, the frost resistance of steel fiber
reinforced concrete (SFRC) was studied in this paper. On the basis of scanning electron …

In order to study the durability of Polypropylene fiber concrete, indoor artificial methods were
used to simulate dry-wet cycle and deicer-frost damage. The results indicated that amounts …