CAJ | 학술논문

结合内蒙古二连浩特疏港互通立交桥实际工程,根据当地气候特点,利用当地原材料,在实验室采用正交实验方案进行大量试验。结果表明,采用 P·O52.5R水泥及当地粗细集料所配制 C50混凝土的28 d抗压强度可达63.9 MPa,且新拌混凝土性能满足施工要求,硬化混凝土抗冻性达到 F250以上。此外,文章还讨论了严寒地区高强混凝土的施工质量控制措施。
결합내몽고이련호특소항호통입교교실제공정,근거당지기후특점,이용당지원재료,재실험실채용정교실험방안진행대량시험。결과표명,채용 P·O52.5R수니급당지조세집료소배제 C50혼응토적28 d항압강도가체63.9 MPa,차신반혼응토성능만족시공요구,경화혼응토항동성체도 F250이상。차외,문장환토론료엄한지구고강혼응토적시공질량공제조시。
A large number of tests have done in the laboratory,combining with the Erenhot port interchange over-pass proj ect in Mongolia,according to the local climate characteristic and using local raw materials.The results show that,with P·O52.5R cement and local aggregates the C50 concrete’s compressive strength of 28 d can reach 63.9 MPa.The fresh concrete performance can meet the construction requirements and hardened concrete frost resistance reach more than F250.In addition,the paper also discusses the quality control measures of high-strength concrete in cold regions.