| 摘要 |
A construction system for wall formation comprising a plurality of block forming units, said units being arranged in vertical, side-by-side rows, with endwise abutment between adjacent rows of said units, positively interengaging components provided on the confronting ends of the units, adhesion between the units of one row and those of each adjacent row being effected by cementitious material, and wall expanding and contracting units provided within said wall formation; each of said last-mentioned units incorporating first and second cooperative members adapted for mutual relative horizontal movement responsive to atmospheric conditions.
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