無機(jī)非金屬專業(yè)外文翻譯---低水灰比復(fù)合水泥的水化

1、外文資料翻譯The Hydration of Blended Cement at Low W/B RatioABSTRACT：The hydration process,hydration product and hydration heat of blended cement paste mixed with mineral admixture and expansive agent at Low/B ratio are studie

2、d Byrd,Thermos analysis,and calorimetry instrument,and they were compared with those impure cement paste.The results show that pure cement and blended cement at Low/B ratio have the same types hyperproductions,but respec

3、tive amounts hyperrational products of various blended cements at same ages Anthea variation Olathe amount of same hydration with ages are different;The joint effect liquefaction fodgel-deterring due to water absorption

4、and the expansive pressure on millepore adrift caused Sotheby crystallogenetic is the impetus of the volume expansion cementa paste,and Rothermere effect is much greater than the latter one.KEY WORDS: hydration; blended

5、cement; low W/B ratio; expansion mechanism1 IntroductionThe hydration and hardening processes of ordinary cement have been studied intensively[1-3].Partly replacing cement with fly ash,slag,or other active mineral admix

6、ture can not commodify the cement strength grade,reduce the hydration heat of cement,but also meliorate the structure of harden cement paste[4].Applying expansive agent in ordinary concrete can combine the bearing and wa

7、terproof functions of a building,and it can also reduce the shrinkage and prevent the cracking of concrete[5,6].However,the hydration process of cement mixed with fly ash,slag and expansive agent at Low/B ratio under non

8、-saturation water condition need to be studied sufficiently.So we execute the research work in this field.2 Elementarily3.1 Hydration process of blended cementWe used 15% fly ash,15% flag and 10% UEA to replace correspo

9、ndency cement,and studied the hydration products with XRD.The specimens were all molded and cured under free,Low/B ratio (0.28) and moist conditions (but not soaked into water).From Fig.1 to Fig.4 we can learn that the t

10、ypes of the hydration products of pure cement and blended cement are the same.All of them are C-S-H,CH,Aft etc.In addition,there hemihydrated C3S and C2Setc.But in the same hydration age,the amount of all kinds of hydrat

11、ion products differs obviously.And this fact is reflected in the differences of the relative integrity of the diffraction peaks (Counterseal-e).We list the relative intensity of the diffraction peaks of the main hydratio

12、n products and hydrated C3S and C2S at ages of 3d and 28d age in Table 2.Table1 Characteristics of Raw MaterialsS S:Specific surface;R W D:Ratio of water demand;R28:Compressive strength of 28dTable2 The Relative Intensit