| 摘要 |
The closure plate of the expansion joint has a load-bearing base layer (1), consisting of an elastomer with low shear modulus, and a carriageway top layer (2) which consists of a harder material than does the base layer. The harder carriageway top layer (2), which consists of wear-resistant, heat-resistant and oil-resistant material, such as polychloroprene, and is designed in one piece, is non-releasably adhesively bonded or vulcanised on the load-bearing base layer (1), which consists of soft material which does not react to temperature, such as natural rubber, butadiene-Styropor elastomer or ethylene-propylene elastomer. <IMAGE>
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