主講人：安亞強Portlandfly-ashcement粉煤灰硅酸鹽水泥e7d195523061f1c0d3ba7f298e59d031c9c3f97027ed136f882110EF8F17BAD1F2C348D17C7856EF46CB4678CC9E44EE1ABA681E3133328A7B4D22AAF822B2429426B2355AA8CC4431B8568D2CF3B73A52C9DCEEEF66CDF289C9CC36ECBA7F2088C42C31F330BCA7EC41E6E76953A88CADF3CA73340CC01276EA886AD11179865124F41FC0CEE3C7粉煤灰硅酸鹽水泥P.Fe7d195523061f1c0d3ba7f298e59d031c9c3f97027ed136f882110EF8F17BAD1F2C348D17C7856EF46CB4678CC9E44EE1ABA681E3133328A7B4D22AAF822B2429426B2355AA8CC4431B8568D2CF3B73A52C9DCEEEF66CDF289C9CC36ECBA7F2088C42C31F330BCA7EC41E6E76953A88CADF3CA73340CC01276EA886AD11179865124F41FC0CEE3C7粉煤灰水泥應用面較廣、使用量較大的水泥品種。CONTENTS目錄定義技術要求特性及應用231DefinitionTechnicalrequirementsPropertyandapplications............................................................................................................e7d195523061f1c0d3ba7f298e59d031c9c3f97027ed136f882110EF8F17BAD1F2C348D17C7856EF46CB4678CC9E44EE1ABA681E3133328A7B4D22AAF822B2429426B2355AA8CC4431B8568D2CF3B73A52C9DCEEEF66CDF289C9CC36ECBA7F2088C42C31F330BCA7EC41E6E76953A88CADF3CA73340CC01276EA886AD11179865124F41FC0CEE3C7e7d195523061f1c0d3ba7f298e59d031c9c3f97027ed136f882110EF8F17BAD1F2C348D17C7856EF46CB4678CC9E44EE1ABA681E3133328A7B4D22AAF822B2429426B2355AA8CC4431B8568D2CF3B73A52C9DCEEEF66CDF289C9CC36ECBA7F2088C42C31F330BCA7EC41E6E76953A88CADF3CA73340CC01276EA886AD11179865124F41FC0CEE3C7定義definition1適量石膏粉煤灰硅酸鹽水泥熟料粉煤灰硅酸鹽水泥摻加量按質量百分比計為20%~40%技術性能Technicalrequirements2細度：80μm方孔篩篩余≤10%或45μm方孔篩篩余≤30%。強度等級抗壓強度（MPa）抗折強度（MPa）3d28d3d28d32.5≥10.0≥32.5≥2.5≥5.532.5R≥15.0≥3.542.5≥15.0≥42.5≥3.5≥6.542.5R≥19.0≥4.052.5≥21.0≥52.5≥4.0≥7.052.5R≥23.0≥4.5強度等級：按照規定齡期的抗壓強度和抗折強度劃分。氧化鎂：≤5.0%，壓蒸合格的放寬至6.0%。三氧化硫：≤3.5%。凝結時間：初凝：≥45min,終凝≤600min。體積安定性：沸煮法合格。堿含量：Na2O+0.658K2O≤0.60%時商定。氯離子含量：≤0.06%。特性及應用Propertyandapplications3早期強度低，后期強度增進率高。抗軟水、抗腐蝕能力強。水化熱低。濕熱敏感性強，適合蒸汽養護。抗碳化能力差。3.13.23.33.43.53.63.7保水性差，易泌水。和易性好，干縮性小、抗裂好。粉煤灰呈致密的球形顆粒粉煤灰顆粒呈封閉結實的球形，比表面積小，吸水能力小，需水量少小結定義技術性能兩大主要特性及適用范圍e7d195523061f1c0d3ba7f298e59d031c9c3f97027ed136f882110EF8F17BAD1F2C348D17C7856EF46CB4678CC9E44EE1ABA681E3133328A7B4D22AAF822B2429426B2355AA8CC4431B8568D2CF3B73A52C9DCEEEF66CDF289C9CC36ECBA7F2088C42C31F330BCA7EC41E6E76953A88CADF3CA73340CC01276EA886AD11179865124F41FC0CEE3C7ThanksForWatching主講人：安亞強e7d195523061f1c0d3ba7f298e59d031c9c3f97027ed136f882110EF8F17BAD1F2C348D17C7856EF46CB4678CC9E44EE1ABA681E3133328A7B4D22AAF822B2429426B2355AA8CC4431B8568D2CF3B73A52C