材料
Ultra-Fine Grained Sand Concrete
Ultra-fine grained sand concrete (UFGS) is a kind of concrete with a very low water-cement ratio, high strength and durability, and better environmental performance. By using ultra-fine grained sand as the aggregate, UFGS can provide superior compressive strength, greater tensile strength, lower porosity and absorption rate, and improved watertightness. The content of ultra-fine grained sand in UFGS is much higher than that of conventional concrete, allowing UFGS to have significantly better mechanical properties and thus to produce higher quality and more durable construction materials.
In comparison with traditional concrete, the use of ultra-fine grained sand in making UFGS greatly reduces the water-cement ratio, which leads to more uniform material distribution and less cracking. UFGS also improves the energy efficiency of the concrete making process by decreasing the amount of energy required for processing and curing. The resulting concrete is also less susceptible to corrosion from harmful substances, making it more durable over extended periods of time. Furthermore, the production of UFGS requires fewer natural resources than conventional concrete, which makes it eco-friendly and sustainable.
With its higher strength and reduced water-cement ratios, UFGS is ideal for construction projects that require superior structural integrity and a greater resistance to water infiltration, such as bridge and submerged structures, subway tunnels, and basements. UFGS also provides an effective way to increase the bearing capacity of the foundation without the need for large amounts of concrete.
In order to produce UFGS, the aggregate particles used should have an average size below 0.125 millimeters as to ensure that they transfer enough concrete paste to form a homogeneous mix. The concrete mix should also have a water-cement ratio between 0.2 and 0.22 in order to achieve a workable consistency. Furthermore, the curing and finishing processes should be followed very carefully in order to make sure that the desired compressive strength and durability are achieved.
In conclusion, ultra-fine grained sand concrete is an effective construction material that offers a range of benefits over traditional concrete. By combining ultra-fine grained sand with lower water-cement ratios, UFGS provides superior compressive strength, reduced water infiltration, superior energy efficiency, and improved environmental performance. Furthermore, UFGS requires less natural resources than traditional concrete, resulting in more sustainable and eco-friendly construction materials. With its broad range of advantages, UFGS is the perfect choice for both residential and commercial projects that require superior structural integrity and durability.
