CN103938797A - Heat-preserving recycled concrete rectangular column with dismantling-free high performance cement mortar mold plate and manufacturing method - Google Patents
Heat-preserving recycled concrete rectangular column with dismantling-free high performance cement mortar mold plate and manufacturing method Download PDFInfo
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- 239000004567 concrete Substances 0.000 title claims abstract description 70
- 239000011083 cement mortar Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 39
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract 4
- 238000009413 insulation Methods 0.000 claims description 32
- 238000009415 formwork Methods 0.000 claims description 28
- 230000008929 regeneration Effects 0.000 claims description 18
- 238000011069 regeneration method Methods 0.000 claims description 18
- 230000032683 aging Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 238000005452 bending Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000011449 brick Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000010334 sieve classification Methods 0.000 claims 1
- 238000004321 preservation Methods 0.000 abstract description 5
- 239000011324 bead Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 9
- 239000011325 microbead Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004005 microsphere Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000011489 building insulation material Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本发明涉及一种免拆高性能水泥砂浆模板保温再生混凝土矩形柱及作法,属于结构工程技术领域。The invention relates to a non-dismantling high-performance cement mortar formwork thermal insulation recycled concrete rectangular column and a method thereof, which belong to the technical field of structural engineering.
背景技术Background technique
随着生产力的飞速发展,能源消耗量越来越高,我国能源需求量以每年2%的比率增长,而这些能源大约有30%消耗在建筑物上。据统计,到2000年年底,全国既有建筑面积城镇己达76.6亿平方米(其中住宅44.1亿平方米),其中能够达到采暖节能设计标准的约1.8亿平方米,仅占城市房屋面积的2.3%。全国尚有40多亿平方米的城镇采暖居住面积需要改造,加上公共建筑、工业建筑以及农村的房屋建筑,全国共有270多亿平方米的既有建筑需要进行节能改造。特别是目前我国大量带中央空调系统的公共建筑也是建筑用能大户,这类建筑在围护结构和供暖空调系统方面约有30%~50%的巨大节能潜力。作为一个能耗大国,节约能源的重要性业已在我国的各项领域中凸现出来。进入二十一世纪,随着我国建筑保温材料的改革及建筑节能等相关政策的推行,开发新的保温材料和节能住宅结构体系已成为工程界的首要任务之一。With the rapid development of productivity, energy consumption is getting higher and higher. The energy demand in our country is increasing at a rate of 2% per year, and about 30% of this energy is consumed in buildings. According to statistics, by the end of 2000, the existing construction area of cities and towns across the country had reached 7.66 billion square meters (including 4.41 billion square meters of residential buildings), of which about 180 million square meters could meet the heating and energy-saving design standards, accounting for only 2.3% of the urban housing area. %. There are still more than 4 billion square meters of urban heating and residential areas in the country that need to be renovated. Including public buildings, industrial buildings and rural housing buildings, there are more than 27 billion square meters of existing buildings in the country that need energy-saving renovations. Especially at present, a large number of public buildings with central air-conditioning systems in my country are also large building energy consumers. This type of building has a huge energy-saving potential of about 30% to 50% in terms of enclosure structures and heating and air-conditioning systems. As a country with a large energy consumption, the importance of saving energy has been highlighted in various fields of our country. In the 21st century, with the reform of my country's building insulation materials and the implementation of related policies such as building energy conservation, the development of new insulation materials and energy-saving residential structure systems has become one of the top tasks in the engineering field.
随着土木工程的快速发展,我国每年将会产生大量的建筑垃圾,其中废弃混凝土就约占建筑垃圾30%~40%。如此巨量的废弃混凝土除处理费用惊人外,还需要占用大量的空地存放,污染环境,浪费耕地,成为城市的一大公害,而由此引发的环境问题也十分突出。以我国为例,若按一万吨建筑垃圾需要占地两亩来计算,每年18~24亿吨的废弃混凝土就需要占用36~48亿亩土地,这给我国本来耕地短缺的现状无疑是雪上加霜,我国北京、上海等很多大中城市近郊很难找到弃埋的地方,并且此形势将日趋严峻。With the rapid development of civil engineering, a large amount of construction waste will be produced in my country every year, among which waste concrete accounts for about 30% to 40% of construction waste. Such a huge amount of waste concrete, in addition to the staggering cost of disposal, also requires a large amount of open space for storage, polluting the environment and wasting cultivated land, becoming a major public hazard in the city, and the environmental problems caused by it are also very prominent. Taking my country as an example, if 10,000 tons of construction waste needs to occupy two acres of land, 1.8 to 2.4 billion tons of waste concrete will occupy 3.6 to 4.8 billion acres of land every year. This will undoubtedly make my country's original shortage of cultivated land worse. However, it is difficult to find places to bury in the suburbs of many large and medium-sized cities such as Beijing and Shanghai in my country, and this situation will become increasingly severe.
传统的钢筋混凝土柱结构在浇筑的时候需要制作木模板,既浪费了资源又提高了工程造价,施工起来也较为不便,同时,传统钢筋混凝土柱保温性能普遍较差,而且大多内部浇筑的是普通混凝土,无法做到绿色环保。基于此,本发明提出了一种简单环保,易于施工,用永久性免拆高性能水泥砂浆模板代替传统模板,现浇保温再生混凝土的绿色节能承重柱,相比于传统的混凝土承重柱,其耐久性和承载力有所提高,同时砂浆模板免拆,提高了结构的整体性和抗震性能,同时,采用的保温再生混凝土既具有良好的保温性能又可以做到绿色环保,非常适用于低、多层建筑的结构新体系。The traditional reinforced concrete column structure needs to make wooden formwork when pouring, which not only wastes resources but also increases the project cost, and it is inconvenient to construct. At the same time, the traditional reinforced concrete column has poor thermal insulation performance, and most of the internal pouring is ordinary Concrete cannot be environmentally friendly. Based on this, the present invention proposes a green energy-saving load-bearing column that is simple and environmentally friendly, easy to construct, replaces the traditional formwork with a permanent non-demolition-free high-performance cement mortar formwork, and casts in-situ thermal insulation recycled concrete. Compared with the traditional concrete load-bearing column, its The durability and bearing capacity have been improved. At the same time, the mortar formwork does not need to be disassembled, which improves the integrity and seismic performance of the structure. At the same time, the thermal insulation recycled concrete has good thermal insulation performance and can be environmentally friendly. New structural systems for multi-storey buildings.
发明内容Contents of the invention
本发明的目的在于提供一种具有构造简单、造价低廉、施工方便、绿色节能耐久一体化等优点的免拆高性能水泥砂浆模板保温再生混凝土矩形柱及作法,以期有效解决传统混凝土柱保温性能不佳,耐久性差,无法做到绿色环保等问题。The purpose of the present invention is to provide a high-performance cement mortar formwork thermal insulation recycled concrete rectangular column without dismantling and its method, which has the advantages of simple structure, low cost, convenient construction, green energy saving and durable integration, in order to effectively solve the problem of traditional concrete column insulation performance. Good, poor durability, unable to achieve environmental protection and other issues.
为实现上述目的,本发明采用的技术方案为一种免拆高性能水泥砂浆模板保温再生混凝土矩形柱及作法,本发明所述免拆高性能水泥砂浆模板保温再生混凝土矩形柱,该矩形柱包括高性能水泥砂浆板、高聚合砂浆、钢筋骨架、再生混凝土、玻璃化微珠、角钢连接件。In order to achieve the above object, the technical solution adopted in the present invention is a rectangular column of heat-insulating recycled concrete with high-performance cement mortar formwork without dismantling and its method. High-performance cement mortar board, high-polymer mortar, steel skeleton, recycled concrete, vitrified microbeads, angle steel connectors.
具体而言,高性能泥砂浆板可以加工成相应的模数,如300、600、900mm,厚度为20~25mm。砂浆采用的是高性能砂浆,内部有钢丝密布网作为钢筋骨架,采用高频振动器进行细密实振捣,保证高性能砂浆可以与钢丝密布网有效的粘结,大大提高了钢丝网砂浆板的密实度和强度,理论可达C40~C50混凝土强度等级;在加工高性能水泥砂浆板时,只抛平一面作为浇筑模板的外面,粗糙的一面为浇筑模板的内面,从而有效提高浇筑的保温再生混凝土与高性能水泥砂浆板的粘结。Specifically, the high-performance mud mortar board can be processed into corresponding modulus, such as 300, 600, 900mm, and the thickness is 20-25mm. The mortar is high-performance mortar, with steel wire dense mesh inside as the steel skeleton, and a high-frequency vibrator is used for fine and compact vibration to ensure that the high-performance mortar can be effectively bonded to the steel wire dense mesh, which greatly improves the strength of the steel mesh mortar board. The density and strength can theoretically reach the concrete strength grade of C40~C50; when processing high-performance cement mortar boards, only the flat side is used as the outside of the pouring formwork, and the rough side is the inner surface of the pouring formwork, thereby effectively improving the thermal insulation regeneration of the pouring Bonding of concrete to high performance cement mortar panels.
高聚合砂浆为钢丝网砂浆板提供了可靠的粘结,同时可以快速粘结硬化,从而克服了钢丝网砂浆模板的搭设问题,砂浆涂抹厚度不宜超过5~8mm。The high-polymer mortar provides reliable bonding for the steel mesh mortar board, and at the same time, it can be quickly bonded and hardened, thus overcoming the problem of erecting the steel mesh mortar formwork. The thickness of the mortar application should not exceed 5-8mm.
所述钢筋骨架中的纵向钢筋采用HRB335级或HRB400级钢筋,直径为12mm~14mm;箍筋采用HPB300级钢筋,箍筋直径为8mm~10mm,箍筋间距150mm。The longitudinal steel bars in the steel bar skeleton are HRB335 or HRB400 steel bars with a diameter of 12 mm to 14 mm; the stirrups are HPB300 steel bars with a diameter of 8 mm to 10 mm and a stirrup spacing of 150 mm.
再生混凝土为根据不同粗细骨料的取代情况而制备的混凝土,通过把废弃的混凝土破碎、清洗和筛分分级且按一定比例相互配比而成,分为粗骨料取代再生混凝土和细骨料取代混凝土,主要以粗骨料进行取代,取代率为30%~50%,细骨料取代率不超过10%。Recycled concrete is concrete prepared according to the replacement of different coarse and fine aggregates. It is made by crushing, cleaning, sieving and grading waste concrete and mixing them in a certain proportion. It is divided into coarse aggregate instead of recycled concrete and fine aggregate. Instead of concrete, the replacement rate is mainly coarse aggregate, the replacement rate is 30% to 50%, and the replacement rate of fine aggregate is not more than 10%.
玻璃化微珠为一种连续玻璃化封闭表面、同时内部完整的多孔空心结构的不规则球状体颗粒,其具有质轻、保温、耐老化的特点。选用的玻璃化微珠的直径为1.5~2.0mm。玻璃化微珠和再生混凝土组合就形成了新型保温再生混凝土。Vitrified microbeads are irregular spherical particles with a continuous vitrified closed surface and a complete porous hollow structure inside. It has the characteristics of light weight, heat preservation and aging resistance. The selected vitrified microspheres have a diameter of 1.5-2.0 mm. The combination of vitrified microbeads and recycled concrete forms a new thermal insulation recycled concrete.
角钢连接件选用小型等边角钢,尺寸为∠30×30×3(边宽为30mm、边厚为3mm),用于加强钢丝网砂浆板在弯折处的连接,水平布置间距为250~300mm,竖直间距为300~400mm。The angle steel connectors are small equilateral angle steel with a size of ∠30×30×3 (30mm side width and 3mm side thickness), which are used to strengthen the connection of the steel mesh mortar board at the bend, and the horizontal layout spacing is 250-300mm , the vertical spacing is 300-400mm.
与现有技术相比,本发明具有如下有益效果。Compared with the prior art, the present invention has the following beneficial effects.
本发明免拆高性能水泥砂浆模板保温再生混凝土矩形柱适用于低、多层新型建筑体系。采用的新型保温再生混凝土既提高了结构的保温性能又可以做到绿色再生,保温性能可提高20%,同时,高新能水泥砂浆板具有良好的耐久性和强度,作为外模板既可以免拆又提高了结构的整体性和耐久性。The non-removable high-performance cement mortar formwork insulation recycled concrete rectangular column of the present invention is suitable for low and multi-storey new building systems. The new type of thermal insulation recycled concrete not only improves the thermal insulation performance of the structure, but also can achieve green regeneration. The thermal insulation performance can be increased by 20%. At the same time, the high-tech cement mortar board has good durability and strength. Improved structural integrity and durability.
附图说明Description of drawings
图1是免拆高性能水泥砂浆模板保温再生混凝土矩形柱截面图。Figure 1 is a cross-sectional view of a rectangular column of heat-insulating recycled concrete with high-performance cement mortar formwork without dismantling.
图2是角钢连接件意图。Figure 2 is a schematic view of angle steel connectors.
图3免拆高性能水泥砂浆模板保温再生混凝土矩形柱立面图。Fig. 3 The elevation view of the recycled concrete rectangular column with high-performance cement mortar formwork insulation without dismantling.
图中:1、高性能水泥砂浆板,2、高聚合砂浆,3、钢筋骨架,4、再生混凝土,5、玻璃化微珠,6、角钢连接件。In the figure: 1. High-performance cement mortar board, 2. High-polymer mortar, 3. Steel skeleton, 4. Recycled concrete, 5. Vitrified microbeads, 6. Angle steel connectors.
具体实施方式Detailed ways
下面结合具体实施例对本发明做进一步说明。The present invention will be further described below in conjunction with specific embodiments.
如图1-3所示,一种免拆高性能水泥砂浆模板保温再生混凝土矩形柱及作法,本发明所述免拆高性能水泥砂浆模板保温再生混凝土矩形柱,该矩形柱包括高性能水泥砂浆板1、高聚合砂浆2、钢筋骨架3、再生混凝土4、玻璃化微珠5、角钢连接件6。As shown in Figure 1-3, a kind of non-dismantling high-performance cement mortar formwork heat preservation recycled concrete rectangular column and its method, the free high-performance cement mortar formwork heat preservation recycled concrete rectangular column of the present invention, the rectangular column includes high-performance cement mortar Board 1, high-polymer mortar 2, steel skeleton 3, recycled concrete 4, vitrified beads 5, angle steel connector 6.
高性能水泥砂浆板1作为外部免拆模板通过高聚合砂浆2以及角钢连接件6提供可靠的柔性粘结和刚性连接,同时,内部设有钢筋骨架3,大大提高了结构的整体性能,最后一次性浇筑由再生混凝土4和玻璃化微珠5合理配比的再生保温混凝土,便形成了免拆高性能水泥砂浆模板保温再生混凝土矩形柱。The high-performance cement mortar board 1 is used as an external non-demolition formwork to provide reliable flexible bonding and rigid connection through high-polymer mortar 2 and angle steel connectors 6. At the same time, there is a steel skeleton 3 inside, which greatly improves the overall performance of the structure. The last time Properly pouring recycled concrete 4 and vitrified microbeads 5 with a reasonable ratio of recycled thermal insulation concrete, forming a high-performance cement mortar formwork thermal insulation recycled concrete rectangular column without dismantling.
具体而言,高性能泥砂浆板1可以加工成相应的模数,如300、600、900mm,厚度为20~25mm。砂浆采用的是高性能砂浆,内部有钢丝密布网作为钢筋骨架,采用高频振动器进行细密实振捣,保证高性能砂浆可以与钢丝密布网有效的粘结,大大提高了钢丝网砂浆板的密实度和强度,理论可达C40~C50混凝土强度等级;在加工高性能水泥砂浆板时,只抛平一面作为浇筑模板的外面,粗糙的一面为浇筑模板的内面,从而有效提高浇筑的保温再生混凝土与高性能水泥砂浆板的粘结。Specifically, the high-performance mud mortar board 1 can be processed into a corresponding modulus, such as 300, 600, 900mm, and a thickness of 20-25mm. The mortar is high-performance mortar, with steel wire dense mesh inside as the steel skeleton, and a high-frequency vibrator is used for fine and compact vibration to ensure that the high-performance mortar can be effectively bonded to the steel wire dense mesh, which greatly improves the strength of the steel mesh mortar board. The density and strength can theoretically reach the concrete strength grade of C40~C50; when processing high-performance cement mortar boards, only the flat side is used as the outside of the pouring formwork, and the rough side is the inner surface of the pouring formwork, thereby effectively improving the thermal insulation regeneration of the pouring Bonding of concrete to high performance cement mortar panels.
高聚合砂浆2为钢丝网砂浆板提供了可靠的粘结,同时可以快速粘结硬化,从而克服了钢丝网砂浆模板的搭设问题,砂浆涂抹厚度不宜超过5~8mm。High-polymer mortar 2 provides reliable bonding for the steel mesh mortar board, and at the same time can quickly bond and harden, thereby overcoming the problem of erecting the steel mesh mortar formwork. The thickness of the mortar application should not exceed 5-8mm.
所述钢筋骨架3中的纵向钢筋采用HRB335级或HRB400级钢筋,直径为12mm~14mm;箍筋采用HPB300级钢筋,箍筋直径为8mm~10mm,箍筋间距150mm。The longitudinal steel bars in the steel bar skeleton 3 are HRB335 or HRB400 steel bars with a diameter of 12 mm to 14 mm; the stirrups are HPB300 steel bars with a diameter of 8 mm to 10 mm and a stirrup spacing of 150 mm.
再生混凝土4为根据不同粗细骨料的取代情况而制备的混凝土,通过把废弃的混凝土破碎、清洗和筛分分级且按一定比例相互配比而成,分为粗骨料取代再生混凝土和细骨料取代混凝土,主要以粗骨料进行取代,取代率为30%~50%,细骨料取代率不超过10%。Recycled concrete 4 is concrete prepared according to the replacement of different coarse and fine aggregates. It is made by crushing, cleaning, sieving and grading waste concrete and mixing them in a certain proportion. It is divided into coarse aggregate replacing recycled concrete and fine bone concrete. Concrete is replaced by coarse aggregate, the replacement rate is 30% to 50%, and the replacement rate of fine aggregate is not more than 10%.
玻璃化微珠5为一种连续玻璃化封闭表面、同时内部完整的多孔空心结构的不规则球状体颗粒,其具有质轻、保温、耐老化的特点。选用的玻璃化微珠的直径为1.5~2.0mm。玻璃化微珠5和再生混凝土4组合就形成了新型保温再生混凝土。The vitrified microbead 5 is an irregular spherical particle with a continuous vitrified closed surface and a complete porous hollow structure inside, which has the characteristics of light weight, heat preservation and aging resistance. The selected vitrified microspheres have a diameter of 1.5-2.0 mm. The combination of the vitrified microbeads 5 and the recycled concrete 4 forms a new thermal insulation recycled concrete.
角钢连接件6选用小型等边角钢,尺寸为∠30×30×3(边宽为30mm、边厚为3mm),用于加强钢丝网砂浆板在弯折处的连接,水平布置间距为250~300mm,竖直间距为300~400mm。The angle steel connector 6 is made of small equilateral angle steel with a size of ∠30×30×3 (side width 30mm and side thickness 3mm), which is used to strengthen the connection of the steel mesh mortar board at the bend, and the horizontal layout distance is 250~ 300mm, the vertical spacing is 300~400mm.
免拆高性能水泥砂浆模板保温再生混凝土矩形柱,其制作方法如下。The non-dismantling high-performance cement mortar formwork insulation recycled concrete rectangular column has the following manufacturing method.
S1将免拆高性能水泥砂浆模板保温再生混凝土矩形柱的钢筋骨架按尺寸插于基础梁内,浇筑基础梁钢筋混凝土。In S1, insert the steel skeleton of the recycled concrete rectangular column without demolition-free high-performance cement mortar formwork into the foundation beam according to the size, and pour the reinforced concrete of the foundation beam.
S2将基础梁上表面按房屋平面尺寸进行抄测放线,找平基础梁上表面,按高性能水泥砂浆模板的厚度弹出双实线。S2 The upper surface of the foundation beam is measured and laid out according to the plane size of the house, the upper surface of the foundation beam is leveled, and the double solid line is popped up according to the thickness of the high-performance cement mortar formwork.
S3将高性能水泥砂浆模板进行搭接围砌,水泥砂浆板采用高聚合砂浆进行粘结,同时加设角钢连接6。In S3, the high-performance cement mortar formwork is lapped and built, and the cement mortar board is bonded with high-polymer mortar, and an angle steel connection 6 is added at the same time.
S4在高性能水泥砂浆板1围成的矩形框内浇筑保温再生混凝土形成免拆高性能水泥砂浆模板保温再生混凝土矩形柱。S4 Pouring thermal insulation recycled concrete in the rectangular frame surrounded by high-performance cement mortar boards 1 to form a rectangular column of thermal insulation recycled concrete with high-performance cement mortar formwork.
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CN107700752A (en) * | 2017-11-21 | 2018-02-16 | 刘成金 | One kind exempts from template iron net concrete cast beam, post and its construction method |
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