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中文摘要：
文章探讨了SO3对高镁水泥熟料中C3S晶型的调控以及对该熟料水化性能的影响。通过X射线衍射对熟料矿物含量和C3S的晶型进行表征并测试了熟料的净浆强度及结合水。研究表明：当SO3的掺量为1％、2％时不会对C3S的形成带来阻碍，样品中f-CaO含量均小于1％。在该熟料中，阿利特以M3型为主，多为细小的晶体，SO3的掺入能够稳定M1型的阿利特。1％-2％S03的掺入能促进熟料的水化，提高熟料的中后期强度，当掺量为2％时3、28d净浆抗压强度分别提高8％和5％。水化程度随着S03掺量的增加而增加，水化产物中含有大量的钙钒石。
英文摘要：
Modification of C3S and impact properties of cement clinker by addition of SO3 into high MgO content were investigated. Modification of C3S in clinker was characterized with XRD. Paste compressive strength and combined water were measured. Results showed： 1% and 2% addition of SO3 had no negative impact on the formation of C3S with the evidence of low f-CaO content in clinker; addition of SO3 could improve the later strength of clinker. The paste compressive strength in 3 and 28 d were separately im- proved by 8% and 5% with 2% addition of SO3. The degree of hydration was enhanced by increasing the SO3 addition with high ettringite content hydration products.
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