浮石混凝土多孔承重墙板试验研究
|
摘要
随着我国粘土砖逐渐被禁用,各地区都在积极的寻求一种新的墙体材料替代产品以满足建筑业不断发展的需要。浮石是一种比较理想的天然轻骨料,用它制作的浮石混凝土具有“轻质、保温、隔热”等优点。内蒙古地区蕴藏着大量的浮石资源,如果能够把它合理利用起来,这将对该区的建设起积极的推动作用。本文是对锡林浩特地区的浮石进行研究。首先,对浮石及其浮石混凝土的主要物理力学性能进行了测试;然后,制作了22块浮石混凝土多孔承重墙板,并对其物理力学性能进行初步试验研究。
试验结果表明:
1.锡林浩特地区浮石的主要物理性能指标如:堆积密度、表观密度、筒压强度、吸水率、孔隙率、软化系数等,均满足《轻集料及其试验方法》(GB/T17431.1-1998)的技术要求。
2.用该地区浮石制成的浮石混凝土,其抗压强度达到了结构轻骨料混凝土要求的最低强度等级CL20;浮石混凝土的轴心抗压强度与标准抗压强度之间符合线性关系: f_(ck)= 0.93f_(cu);浮石混凝土的应力~应变曲线和普通混凝土的基本相似,但也有所不同,在相同强度等级条件下,浮石混凝土曲线的上升阶段比较平缓;浮石混凝土的弹性模量比同强度等级的普通混凝土低;浮石混凝土基本物理性能指标符合《轻骨料混凝土技术规程》(JGJ51—2002)的要求。
3.通过对浮石混凝土多孔承重墙板力学性能试验结果分析表明:理论计算得到的轴心受压和偏心受压的承载力和试验值基本符合;抗弯试验得到的开裂弯矩接近理论计算的开裂弯矩;考虑剪跨比影响,理论计算的抗剪承载力与试验值符合较好;抗折强度和抗冲击能力满足相关规定的要求。
4.浮石混凝土多孔承重墙板的物理性能指标如:软化系数、吸水率、面密度等,均符合《建筑隔墙用轻质条板》(JG/T169—2005)的要求。
As the clay brick of our country is forbidden gradually, one kind of new wall is positively sought in order to suffice for construction developing constantly. Pumice is an ideal natural lightweight aggregate, the lightweight aggregate concrete made in it has some virtues such as lightweight, heat-insulation, adiabatic. The area of Inner Mongol contains a great quantity of pumice resources, if we can rational utilize it, this will play a positive push role in the construction of our district. This text carries on research to the pumice of the area of Xi lin Hot. First of all, we have tested the main physical and mechanical performance of pumice and pumice concrete, and then we made 22 pumice concrete porous bearing wallboards, and carry on preliminary experimental study to its physical and mechanical performance.
The trial results show:
1. Main physical performance of the pumice in the area of Xi lin Hot, for instance packing density, apparent density, tube strength, water absorption, porosity, soften coefficient etc, according with the demands for“Lightweight aggregate test method”GB/T17431.1-1998.
2. The compressive strength of the pumice concrete has reached low grade CL20 the most that the structural lightweight aggregate concrete required. The line sexual relations between axial compressive strength and standard compression strength of pumice concrete is f_(ck) = 0.93f(cu). The stress-strain curve of the pumice concrete is basically similar to the ordinary concrete, but some extent differences, under the same intensity grade terms, the ascending stage of the curve of the pumice concrete is more steadily. The elastic modulus of the pumice concrete is lower than the ordinary concrete. The basic physical performance of pumice concrete could meet the demands for“Lightweight aggregate concrete technical regulation”JGJ51-2002.
3. Through analyzing about the trial results of mechanical performance of pumice concrete porous bearing wallboard that shows: the theory calculating bearing capacity of the axes-pressure and eccentric compression is basically tally with the trial result; the trial result of cracking moment is close to the theory calculating; considering the shear span ratio, the theory calculating shear strength is tally with the trial result; the flexural strength and anti-impact property is suffice for the relevant regulation.
4. Physical performance of the pumice concrete porous bearing wallboard, for instance Soften coefficient, water absorption, surface density, etc, accords with the demands for“The partition wall of the building using the lightweight batten”JG/T169-2005.
试验结果表明:
1.锡林浩特地区浮石的主要物理性能指标如:堆积密度、表观密度、筒压强度、吸水率、孔隙率、软化系数等,均满足《轻集料及其试验方法》(GB/T17431.1-1998)的技术要求。
2.用该地区浮石制成的浮石混凝土,其抗压强度达到了结构轻骨料混凝土要求的最低强度等级CL20;浮石混凝土的轴心抗压强度与标准抗压强度之间符合线性关系: f_(ck)= 0.93f_(cu);浮石混凝土的应力~应变曲线和普通混凝土的基本相似,但也有所不同,在相同强度等级条件下,浮石混凝土曲线的上升阶段比较平缓;浮石混凝土的弹性模量比同强度等级的普通混凝土低;浮石混凝土基本物理性能指标符合《轻骨料混凝土技术规程》(JGJ51—2002)的要求。
3.通过对浮石混凝土多孔承重墙板力学性能试验结果分析表明:理论计算得到的轴心受压和偏心受压的承载力和试验值基本符合;抗弯试验得到的开裂弯矩接近理论计算的开裂弯矩;考虑剪跨比影响,理论计算的抗剪承载力与试验值符合较好;抗折强度和抗冲击能力满足相关规定的要求。
4.浮石混凝土多孔承重墙板的物理性能指标如:软化系数、吸水率、面密度等,均符合《建筑隔墙用轻质条板》(JG/T169—2005)的要求。
As the clay brick of our country is forbidden gradually, one kind of new wall is positively sought in order to suffice for construction developing constantly. Pumice is an ideal natural lightweight aggregate, the lightweight aggregate concrete made in it has some virtues such as lightweight, heat-insulation, adiabatic. The area of Inner Mongol contains a great quantity of pumice resources, if we can rational utilize it, this will play a positive push role in the construction of our district. This text carries on research to the pumice of the area of Xi lin Hot. First of all, we have tested the main physical and mechanical performance of pumice and pumice concrete, and then we made 22 pumice concrete porous bearing wallboards, and carry on preliminary experimental study to its physical and mechanical performance.
The trial results show:
1. Main physical performance of the pumice in the area of Xi lin Hot, for instance packing density, apparent density, tube strength, water absorption, porosity, soften coefficient etc, according with the demands for“Lightweight aggregate test method”GB/T17431.1-1998.
2. The compressive strength of the pumice concrete has reached low grade CL20 the most that the structural lightweight aggregate concrete required. The line sexual relations between axial compressive strength and standard compression strength of pumice concrete is f_(ck) = 0.93f(cu). The stress-strain curve of the pumice concrete is basically similar to the ordinary concrete, but some extent differences, under the same intensity grade terms, the ascending stage of the curve of the pumice concrete is more steadily. The elastic modulus of the pumice concrete is lower than the ordinary concrete. The basic physical performance of pumice concrete could meet the demands for“Lightweight aggregate concrete technical regulation”JGJ51-2002.
3. Through analyzing about the trial results of mechanical performance of pumice concrete porous bearing wallboard that shows: the theory calculating bearing capacity of the axes-pressure and eccentric compression is basically tally with the trial result; the trial result of cracking moment is close to the theory calculating; considering the shear span ratio, the theory calculating shear strength is tally with the trial result; the flexural strength and anti-impact property is suffice for the relevant regulation.
4. Physical performance of the pumice concrete porous bearing wallboard, for instance Soften coefficient, water absorption, surface density, etc, accords with the demands for“The partition wall of the building using the lightweight batten”JG/T169-2005.
引文
[1] 吴自强.新型墙体材料[M].武汉:武汉理工大学出版社.2002.8.
[2] 郑立,姚通稳.新型墙体材料技术读本[M].北京:化学工业出版社.2005,1.
[3] 孙氰平,唐岱新,周炳章.混凝土小型空心砌块建筑设计[M].北京:中国建材工业出版社.2001,11.
[4] 陈福广,沈荣熹,马荣 etc.新型墙体材料手册[M].第二版.北京:中国建材工业出版社.2001.
[5] 邢海嵘,李涛,王昊.轻质墙板应用技术分析与发展趋势[J]:低温建筑技术,2001,2:71~72.
[6] 孙丽,付中英,岳德山.我国墙体改革的现状及发展趋势[J]:建筑砌块与砌块建筑.1999,2:28~32.
[7] 胡曙光,王发洲.轻集料混凝土[M].北京:化学工业出版社.2006,5.
[8] 龚洛书,刘春圃.轻集料混凝土[M].北京:中国铁道出版社.1996.
[9] 杜靖中,肖景春.墙板工程在国内住宅建筑中的前景[J]:山西建筑.2001,10,27 卷 5 期:81~82.
[10] 轻集料及其试验方法(GB/T 17431.1—1998)[S].北京:中国标准出版社.1998.
[11] 王忠德,张彩霞,方碧华 etc.实用建筑材料试验手册[M].第二版.北京:中国工业建筑出版社.2003.
[12] 于漧.我国天然轻骨料的开发利用[J]:非金属矿.1997,3:18~20.
[13] 轻骨料混凝土技术规程(JGJ51—2002、JGJ215—2002)[S].北京:中国建筑工业出版社.2002.
[14] 杨新磊,赵方冉.浮石混凝土及其砌块性能研究[J]:混凝土与水泥制品.2004,4,2:45~46.
[15] 牛季收,王保君.粉煤灰在混凝土中的效应及应用[J]:铁道建筑.2004,2:75~76.
[16] 潘宏彬.粉煤灰产量对混凝土强度的影响[J]:试验技术与实验机.2006,3:42~43.
[17] Chen H J, Yen T, Lia T P, et al.Determination of the Dividing strength and its Relation to the Concrete Strength in Lightweight Aggregate Concrete[J].Cement and Concrete Composites.1999,21:29~37.
[18] 屠志磊,张文平,周子义.轻集料混凝土的实验研究[J].建筑技术开发.2001,9,28 卷9 期:24~26.
[19] 吴培明.混凝土结构[M].武汉:武汉工业大学出版社.2001.
[20] 混凝土结构设计规范(GB 50010—2002)[S].北京:中国建筑工业出版社.2002.
[21] 住宅混凝土内墙板与隔墙板(GB/T 14908—94)[S].北京:中国建筑工业出版社.1994.
[22] 轻骨料混凝土结构设计规程(JGJ12—99)[S].北京:中国建筑工业出版社.1999.
[23] 建筑隔墙用轻质条板(JG/T 169—2005)[S].北京:中国建筑工业出版社.2005.
[24] 轻隔墙条板质量检验评定标准(DBJ01—29—2000)[S].2000.
[25] 玻璃纤维增强水泥轻质多孔隔墙条板(GB/T 19631—2005)[S].2005.
[26] 北京市条板轻隔墙构造图集(京 02J38)[S].2002.
[27] 于衍真,李云兰,席志芳.多孔轻质墙板施工技术研究[J]:山东建材.1998,4:15~17.
[28] 范锦忠.AC 轻骨料混凝土空心隔墙条板的生产特色和节能优势[J]:新型墙材.2005,12:33~35.
[29] 于衍真.钢丝网架增强多孔轻质条板的生产工艺与性能研究[J]:混凝土与水泥制品.1997,12,6:48 ~49.
[30] 混凝土结构试验方法标准(GB 50152—92)[S].北京:中国建筑工业出版社.1992.
[31] 江见鲸.混凝土结构工程学[M].北京:中国建筑工业出版社.1998.
[32] 王仁,黄文彬,黄筑平.塑性力学引论[M].北京:北京大学出版社.1992.
[33] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社.2001.
[34] Abdeldjelil Belarbi and Thomas T C Hsu.Constitutive laws of concrete in tension and reinforcing bars stiffened by concrete[J]. ACI Structure Journal.1994,,91(4):465-474.
[35] 周建康,时旭东,赵论语等.钢筋型混凝土复合墙板的轴向受力性能[J]:清华大学学报.2004,12,44 卷 12 期:1676 ~1679.
[36] 傅传国,高娃,蒋永生.砌体结构[M].北京:科技出版社.2005.
[37] 砌体结构设计规范(GB 50003—2001)[S].北京:中国建筑工业出版社.2002.
[38] 顾祥林,高连玉.砌体结构与墙体材料基本理论和工程应用[M].上海:同济大学出版社.2005.
[39] 刘杰,付宝亮.速成墙板偏心受压性能的试验与初步分析[J]:四川建筑科学研究.2005,12,31 卷 6 期:40~41.
[40] 滕智明.钢筋混凝土基本构件[M].第二版.北京:清华大学出版社.1987.
[41] 陆春阳.混凝土受弯构件正截面抗裂弯矩计算[J]:广西大学学报.2005,9,30 卷 3 期:181~182.
[42] 高丹盈,张启明,管巧艳.钢筋钢纤维高强混凝土梁正截面开裂弯矩的计算方法[J]:郑州大学学报.2005,12,26 卷 4 期:1~4.
[43] 范钦珊,王波,殷雅俊.材料力学[M].北京:高等教育出版社.1999.
[44] 岳建伟,谷岩,刘康.速成墙板的抗剪性能试验研究[J]:华中科技大学学报.2006,3,23卷 1 期:27~30.
[45] 孙敏,朱聘儒. 轻骨料混凝土抗剪性能研究[J]:混凝土与水泥制品.2006,6,12: 15~16.
[46] 王连广,王澈.钢骨轻骨料混凝土梁抗剪性能试验研究[J]:工业建筑.2005,1,35 卷 1期:65~66.
[47]王琼梅,王刚,许淑芳.弯剪空心剪力墙试件承载力试验研究[J]:建筑科学.2006,8,22卷 4 期:36~38.
[2] 郑立,姚通稳.新型墙体材料技术读本[M].北京:化学工业出版社.2005,1.
[3] 孙氰平,唐岱新,周炳章.混凝土小型空心砌块建筑设计[M].北京:中国建材工业出版社.2001,11.
[4] 陈福广,沈荣熹,马荣 etc.新型墙体材料手册[M].第二版.北京:中国建材工业出版社.2001.
[5] 邢海嵘,李涛,王昊.轻质墙板应用技术分析与发展趋势[J]:低温建筑技术,2001,2:71~72.
[6] 孙丽,付中英,岳德山.我国墙体改革的现状及发展趋势[J]:建筑砌块与砌块建筑.1999,2:28~32.
[7] 胡曙光,王发洲.轻集料混凝土[M].北京:化学工业出版社.2006,5.
[8] 龚洛书,刘春圃.轻集料混凝土[M].北京:中国铁道出版社.1996.
[9] 杜靖中,肖景春.墙板工程在国内住宅建筑中的前景[J]:山西建筑.2001,10,27 卷 5 期:81~82.
[10] 轻集料及其试验方法(GB/T 17431.1—1998)[S].北京:中国标准出版社.1998.
[11] 王忠德,张彩霞,方碧华 etc.实用建筑材料试验手册[M].第二版.北京:中国工业建筑出版社.2003.
[12] 于漧.我国天然轻骨料的开发利用[J]:非金属矿.1997,3:18~20.
[13] 轻骨料混凝土技术规程(JGJ51—2002、JGJ215—2002)[S].北京:中国建筑工业出版社.2002.
[14] 杨新磊,赵方冉.浮石混凝土及其砌块性能研究[J]:混凝土与水泥制品.2004,4,2:45~46.
[15] 牛季收,王保君.粉煤灰在混凝土中的效应及应用[J]:铁道建筑.2004,2:75~76.
[16] 潘宏彬.粉煤灰产量对混凝土强度的影响[J]:试验技术与实验机.2006,3:42~43.
[17] Chen H J, Yen T, Lia T P, et al.Determination of the Dividing strength and its Relation to the Concrete Strength in Lightweight Aggregate Concrete[J].Cement and Concrete Composites.1999,21:29~37.
[18] 屠志磊,张文平,周子义.轻集料混凝土的实验研究[J].建筑技术开发.2001,9,28 卷9 期:24~26.
[19] 吴培明.混凝土结构[M].武汉:武汉工业大学出版社.2001.
[20] 混凝土结构设计规范(GB 50010—2002)[S].北京:中国建筑工业出版社.2002.
[21] 住宅混凝土内墙板与隔墙板(GB/T 14908—94)[S].北京:中国建筑工业出版社.1994.
[22] 轻骨料混凝土结构设计规程(JGJ12—99)[S].北京:中国建筑工业出版社.1999.
[23] 建筑隔墙用轻质条板(JG/T 169—2005)[S].北京:中国建筑工业出版社.2005.
[24] 轻隔墙条板质量检验评定标准(DBJ01—29—2000)[S].2000.
[25] 玻璃纤维增强水泥轻质多孔隔墙条板(GB/T 19631—2005)[S].2005.
[26] 北京市条板轻隔墙构造图集(京 02J38)[S].2002.
[27] 于衍真,李云兰,席志芳.多孔轻质墙板施工技术研究[J]:山东建材.1998,4:15~17.
[28] 范锦忠.AC 轻骨料混凝土空心隔墙条板的生产特色和节能优势[J]:新型墙材.2005,12:33~35.
[29] 于衍真.钢丝网架增强多孔轻质条板的生产工艺与性能研究[J]:混凝土与水泥制品.1997,12,6:48 ~49.
[30] 混凝土结构试验方法标准(GB 50152—92)[S].北京:中国建筑工业出版社.1992.
[31] 江见鲸.混凝土结构工程学[M].北京:中国建筑工业出版社.1998.
[32] 王仁,黄文彬,黄筑平.塑性力学引论[M].北京:北京大学出版社.1992.
[33] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社.2001.
[34] Abdeldjelil Belarbi and Thomas T C Hsu.Constitutive laws of concrete in tension and reinforcing bars stiffened by concrete[J]. ACI Structure Journal.1994,,91(4):465-474.
[35] 周建康,时旭东,赵论语等.钢筋型混凝土复合墙板的轴向受力性能[J]:清华大学学报.2004,12,44 卷 12 期:1676 ~1679.
[36] 傅传国,高娃,蒋永生.砌体结构[M].北京:科技出版社.2005.
[37] 砌体结构设计规范(GB 50003—2001)[S].北京:中国建筑工业出版社.2002.
[38] 顾祥林,高连玉.砌体结构与墙体材料基本理论和工程应用[M].上海:同济大学出版社.2005.
[39] 刘杰,付宝亮.速成墙板偏心受压性能的试验与初步分析[J]:四川建筑科学研究.2005,12,31 卷 6 期:40~41.
[40] 滕智明.钢筋混凝土基本构件[M].第二版.北京:清华大学出版社.1987.
[41] 陆春阳.混凝土受弯构件正截面抗裂弯矩计算[J]:广西大学学报.2005,9,30 卷 3 期:181~182.
[42] 高丹盈,张启明,管巧艳.钢筋钢纤维高强混凝土梁正截面开裂弯矩的计算方法[J]:郑州大学学报.2005,12,26 卷 4 期:1~4.
[43] 范钦珊,王波,殷雅俊.材料力学[M].北京:高等教育出版社.1999.
[44] 岳建伟,谷岩,刘康.速成墙板的抗剪性能试验研究[J]:华中科技大学学报.2006,3,23卷 1 期:27~30.
[45] 孙敏,朱聘儒. 轻骨料混凝土抗剪性能研究[J]:混凝土与水泥制品.2006,6,12: 15~16.
[46] 王连广,王澈.钢骨轻骨料混凝土梁抗剪性能试验研究[J]:工业建筑.2005,1,35 卷 1期:65~66.
[47]王琼梅,王刚,许淑芳.弯剪空心剪力墙试件承载力试验研究[J]:建筑科学.2006,8,22卷 4 期:36~38.