... bearing stress, the extension road surface service life, the high tensile strength low elongation ratio, not long-term slow change, the ... , restrains sedimentation effectively, distributes stress uniformly and improves overall strength of road base.5,It is used for preventing contraction ... 6 ISO9001, ISO14001, OHSAS18001 and CE approved EGA fiberglass geogrid with high strength, CE and ISO approved