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2017-11-20В В· HIGHWAY DESIGN MANUAL 630-1 November 20, 2017 CHAPTER 630 FLEXIBLE PAVEMENT . Topic 631 - Types of Flexible Pavements & Materials . Index 631.1 - Hot Mix Egypt highway pavement design manual Braemar 2017-11-20В В· HIGHWAY DESIGN MANUAL 630-1 November 20, 2017 CHAPTER 630 FLEXIBLE PAVEMENT . Topic 631 - Types of Flexible Pavements & Materials . Index 631.1 - Hot Mix