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EPS in Bridge and Road Construction: An Efficient and Advanced Solution
Foundation construction on weak soil requires the use of special technical measures such as pile driving, drilled shafts, or the use of strip or raft foundations to distribute the load. This increases both the cost and construction time.
Takino Filter is a non-woven filter mat, randomly arranged with superfine, impermeable fibers, similar to the capillary roots of a plant. The non-woven fabric structure has a porosity of 97% to 98%, allowing air and water to circulate.
With the characteristic of lightweight materials having a volumetric mass of about 1-70% compared to soil or rock, there are many different types of lightweight materials used, including materials with compressive strength such as: Foam, foamed concrete, and granular materials like slag, ash, and expanded ceramics... Currently, the most commonly used material is expanded polystyrene foam, with the advantage of being easy to process, store, and having a low volumetric mass. Among them, EPS (Expanded Polystyrene) lightweight material has a volumetric mass of only 1% ~ 2% compared to soil, rock, or concrete, and can withstand high compressive stress. Therefore, the use of EPS as a filling material for lightweight structures does not require soil treatment methods such as preloading, lime columns, or cement... This reduces costs and construction time. Figure 2 shows the typical characteristics of the EPS solution.
