Special concretes : workability and mixing : proceedings of the international RILEM workshop organized by RILEM Technical Committee TC 145, Workability of Special Concrete Mixes, in collaboration with RILEM Technical Committee TC 150, Efficiency of Concre

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Copy your kitty. Learn to do stretching exercises when you wake up. It boosts circulation and digestion, and eases back pain. Suggested reading: The Top 100 Best Yoga Poses
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