本文選題：水泥基灌漿材料　切入點：水膠比　出處：《沈陽建筑大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著建筑產(chǎn)業(yè)化的發(fā)展,裝配式建筑已成為當(dāng)今社會建筑發(fā)展的必然趨勢。裝配整體式建筑用灌漿料所構(gòu)成的是預(yù)制構(gòu)件間的關(guān)鍵節(jié)點,是力學(xué)強度、尺寸匹配、耐久性等要求最為苛刻的部位,也因此對灌漿料的性能提出了更高要求。傳統(tǒng)灌漿材料應(yīng)用于裝配式建筑中暴露出諸多問題,因此研制高性能灌漿材料是實現(xiàn)建筑產(chǎn)業(yè)化的重要措施之一。一直以來,研究者們對不同種類的灌漿材料進(jìn)行了深入的研究,包括化學(xué)灌漿材料和非化學(xué)灌漿材料,對其優(yōu)缺點進(jìn)行了分析,發(fā)現(xiàn)應(yīng)用最為廣泛的是水泥基灌漿材料,該類灌漿材料在環(huán)保和經(jīng)濟效益上具有無毒無害、價格低廉等優(yōu)點,被稱為綠色建材；在性能上具有高流動性、高強度、高穩(wěn)定性、不泌水等優(yōu)點。目前,關(guān)于水泥基灌漿材料的研究很多,主要是針對應(yīng)用于二次灌漿、地腳螺栓的錨固、高鐵支座等領(lǐng)域,而對用于裝配式建筑水泥基灌漿材料的研究甚少。本文通過設(shè)計合理的配合比,將水膠比、減水劑、緩凝劑等對灌漿材料工作性、強度的影響進(jìn)行分析與討論。 本文對水泥基灌漿料工作性、強度及膨脹性進(jìn)行測試,分析與探討最大砂粒徑、.膠‘砂比、礦物摻合料摻量對水泥基灌漿料性能的影響。實驗測得最大砂粒徑由1.25mm增大到2.36mm,工作性與強度均有所提高；膠砂比從1：1增加到1：1.5,流動度有減小的趨勢；粉煤灰與硅灰取代水泥總摻量為13%,粉煤灰由3%增加到10%,當(dāng)硅灰摻量為5%,粉煤灰摻量為8%時,體系質(zhì)量最大,密賣狀態(tài)最佳。實驗結(jié)果表明,最大砂粒徑選擇2.36mm,膠砂比1：1,硅灰摻量5%、粉煤灰摻量8%時,工作性與強度符合應(yīng)用于裝配式建筑對灌漿料的性能要求。 本文對水泥基灌漿料的工作性進(jìn)行測定,分析與探討水膠比、水泥種類、減水劑種類及摻量、緩凝劑摻量對水泥基灌漿料工作性的影響。實驗測得在初始流動度不小于300mm的情況下,普硅水泥基灌漿料水膠比可降至0.24,硫鋁水泥基灌漿料水膠比可降至0.21；采用聚羧酸高效減水劑、最佳摻入量保持在0.5%,初始流動度325mm,30min后310mm；采用四硼酸鈉緩凝劑、最佳摻入量保持在0.2%,初始流動度325mm,30min后流動度310mm。實驗結(jié)果得出,硫鋁水泥與普硅水泥基灌漿料的工作性,結(jié)果相差較大,說明水泥物理化學(xué)性質(zhì)對減水劑的適應(yīng)性產(chǎn)生較大影響；在保證符合要求的工作性前提下降低水膠比,摻入聚羧酸減水劑0.5%、四硼酸鈉0.2%是可取的。 本文對水泥基灌漿料的強度進(jìn)行測定,分析與探討水膠比、聚羧酸高效減水劑摻量、硫鋁水泥與普硅水泥復(fù)配對灌漿材料強度的影響。實驗測得42.5R硫鋁水泥基灌漿料水膠比降至0.21、聚羧酸高效減水劑摻量0.5%時,1d強度72MPa,3d強度80MPa,28d強度108MPa；硫鋁水泥基灌漿料的強度隨著聚羧酸高效減水劑摻量的增大而增大,當(dāng)摻量增大到0.6%時,1d強度68MPa,3d強度77MPa,28d強度106MPa；42.5R硫鋁水泥復(fù)配10%42.5普硅水泥基灌漿料,1d強度56MPa,3d強度66MPa,28d強度89MPa。實驗結(jié)果表明：水膠比越大,水泥基灌漿材料的強度越低；適當(dāng)增加聚羧酸高效減水劑摻量可提高強度,摻量過大對早期強度不利；硫鋁水泥復(fù)配10%普通硅酸鹽水泥對灌漿材料強度不利。 本文對最佳配合比的硫鋁水泥基灌漿料進(jìn)行了膨脹性測試,實驗測得硫鋁水泥基灌漿料2h膨脹率0.018%、24h膨脹率0.046%。實驗結(jié)果表明：以此配合比制備高工作性、高強度的硫鋁水泥基灌漿料的膨脹性符合國家標(biāo)準(zhǔn)。
[Abstract]:With the development of the construction industry, building has become an inevitable trend of social development. The construction of prefabricated construction with grouting material is composed of key nodes between prefabricated components, mechanical strength, size matching, the most demanding part for durability requirements, and therefore on the performance of grouting material is put forward high requirements. The traditional grouting material used in prefabricated buildings exposed many problems, so the development of high performance grouting material is one of the important measures to realize the construction industry. Since, the researchers conducted in-depth research on the grouting materials of different kinds, including chemical grouting materials and non chemical grouting material, the the advantages and disadvantages are analyzed, that is the most widely used cement grouting material, the grouting material is non-toxic and harmless in the environmental and economic benefits, low price, is called Green building materials; high liquidity, the performance of high strength, high stability, no bleeding and other advantages. At present, many researches on cement based grouting materials, mainly for the application in the two grouting, anchor bolt, high iron bearing and other fields, and for research on prefabricated construction of cement grouting material very little. Through the rational design of the mix ratio, the ratio of water reducing agent, water cement retarder on the grouting material work, analyzed and discussed the influence of strength.
The work of filling slurry on the cement, strength and swelling test, analysis and discussion of the maximum particle size, sand ratio, glue. "Effects of mineral admixtures on the properties of cement grout material. The measured maximum particle size increased from 1.25mm to 2.36mm, workability and strength are improved; cement sand ratio increased from 1:1 to 1:1.5, decreased fluidity; fly ash and silica fume to replace the total cement content is 13%, the fly ash increased from 3% to 10%, when silica fume was 5%, the amount of fly ash is 8%, the maximum system quality, dense sell best. The experimental results show that the maximum particle size 2.36mm, cement sand ratio 1:1, silica fume 5%, fly ash 8%, workability and strength meets the requirements of performance in the prefabricated construction of grouting material.
The determination of the cement based grouting material, analysis and discussion of the water cement ratio, cement type, type and dosage of water reducer, retarder dosage effects of pouring slurry of cement work. The measured in the initial fluidity of not less than 300mm under the condition of ordinary portland cement based grouting material of water the glue ratio fell to 0.24, sulfur aluminum cement grouting materials water cement ratio may be reduced to 0.21; using polycarboxylate superplasticizer, the optimum amount of remained at 0.5%, the initial fluidity of 325mm, 30min after 310mm; retarder with four sodium borate, the optimum amount of remained at 0.2%, the initial flow of 325mm, 30min the experimental results show that the fluidity of 310mm., the work of sulfur aluminum cement and ordinary portland cement based grouting material, the results were different, that influence the adaptability of physical and chemical properties of cement with superplasticizer; in compliance with the requirements of the premise work with lower water cement ratio, mixing The polycarboxylic acid water reducer 0.5% and four sodium borate 0.2% are advisable.
In this paper, the strength of cement based grouting material were determined. The analysis and discussion of water binder ratio, polycarboxylate superplasticizer dosage, effect of sulfur aluminum cement and ordinary portland cement mixture on the strength of grouting material. The measured 42.5R sulfur aluminum cement based grouting material water cement ratio to 0.21 polycarboxylate superplasticizer admixture 0.5%, the strength of 1D 72MPa, 3D 80MPa 28d 108MPa strength, strength; sulphoaluminate cement based grouting material strength increases with the increase of polycarboxylate superplasticizer content, when the content increases to 0.6%, the strength of 1D 68MPa, 3D 77MPa 28d 106MPa strength, 42.5R strength; sulfur aluminum cement compound silicon 10%42.5 P cement based grouting material, the strength of 1D 56MPa, 3D strength 66MPa, experimental results show that the strength of 28d 89MPa. increasing of water cement ratio of cement grouting material, the strength is low; the increase of polycarboxylate superplasticizer is appropriate can improve the intensity, volume is too large for the early strength of aluminum sulfur is unfavorable; The cement compound 10% ordinary portland cement is bad to the strength of the grouting material.
The best fit of sulfur aluminium cement based grouting material ratio of swelling test, to sulphoaluminate cement based grouting material 2H 0.018% expansion rate test, expansion rate 24h 0.046%. experimental results show that this preparation with high working ratio, sulfur aluminum cement based high strength grouting material expansion in line with national standards.

【學(xué)位授予單位】：沈陽建筑大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU528

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