000 00490nam a2200157Ia 4500
008 170101s1990 xx 000 0 und d
082 _a620.136 I-5A
100 _aVAZQUEZ, E
245 0 _aAdmixtures for concrete : Improvement of properties ; proceedings of the International RILEM Symposium
260 _bLondon
_c1990
300 _a586p
650 _aMATERIALS -- CONGRESSES
653 _aCONCRETE -- CHEMISTRY -- CONGRESSES
653 _aMATERIALS -- CONGRESSES
942 _2ddc
_cB
999 _c105594
_d105594