【正文】
配合比就能生產(chǎn)的,而是由包括原材料控制、拌和物生產(chǎn)制備與整個(gè)施工過(guò)程來(lái)實(shí)現(xiàn)的。由于要求混凝土結(jié)構(gòu)的耐久性,混凝土首先就必須是體積穩(wěn)定的、勻質(zhì)的;開裂了的當(dāng)然就不能稱之為“高性能”??沙掷m(xù)發(fā)展的含義則是最大限度地節(jié)省能源、資源、保護(hù)環(huán)境,并且,耐久性本身也包含可持續(xù)發(fā)展的意義——減少修補(bǔ)和拆除的建筑垃圾和重建的能源、資源消耗??梢詳喽ǎ藗€(gè)別臨時(shí)性結(jié)構(gòu),所有混凝土結(jié)構(gòu)都應(yīng)當(dāng)符合這樣的質(zhì)量目標(biāo)。因此,為了避免誤導(dǎo),針對(duì)各個(gè)不同工程特點(diǎn)和需要,對(duì)混凝土提出滿足具體要求的性能和耐久性的設(shè)計(jì),是否比籠統(tǒng)強(qiáng)調(diào)“高性能混凝土”的名詞要更科學(xué)一些,更能促進(jìn)我國(guó)混凝土技術(shù)廣泛的進(jìn)步?參考文獻(xiàn)[1] Oskar Beijer, Energy Consumption related to concrete structures ACI Journal Nov. 11,1975.[2] 李國(guó)泮,馬貞勇譯,A. M .Neville原著,混凝土的性能,1983年第一版[3] 363 Committee, ACI, State of the Arts Report on High Strength Concrete,1994., Chapter 6. [4] 吳中偉,廉慧珍,高性能混凝土,中國(guó)鐵道出版社,1999年9月[5] P. K. Mehta, Ggreening of the concrete industry for sustainable Development, Concrete International, July 2000[6] Dunstan M R H. Fly Ash,As“The Fourth Composition”of Concrete, In:Proceedings of Second CANMET International Conference on Fly Ash ,Silica fume, Slag and Natural Pozzolans in Concrete,1987.[7] 深圳地鐵一期工程科技成果鑒定文件:高性能混凝土在深圳地鐵一期工程中應(yīng)用的實(shí)驗(yàn)研究,2000年8月[8] M. N. Haque, M. K. Goplan, Strength Development of Inadequately Cured High Fly Ash Content an Structural Concrete, Cement and Concrete Research, , 1986.[9], , PFA Concrete: Influence of Simulated in Situ Curing on ElastoPlastic load Response, Magazine of Concrete Research,1993,45,.[10] . Laboratory and field studies of salt scaling in fly ash concrete. Frost Resistance of Concrete. Proceedings of the International RILEM workshop. E amp。 SPON 1997.[11]Nicholas J. Carino and James R. Clifton ,HighPerformance Concrete: Research Needs to Enhance its Use,Concrete International,September 1991.[12]Henry G. Russell, ACI Defines HighPerformance Concrete, Concrete International,F(xiàn)ebruary 1999.9 /