Whitebox admixtures offer membrane-free, watertight concrete for structures such as basements, underground parking garages, water retaining structures, tunnels, and others. The two admixtures—Sika Watertight Concrete Powder and Sika 1+—are based on highly advanced hydrophobic pore blocking technology. In combination with ViscoCrete water reducers, a watertight self-consolidating concrete is produced, improving densification around PVC waterstops, injection hoses, or expanding profiles, reducing the possibility of water penetration. Sika Corp. 800-933-7452.
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