碎磚骨料再生混凝土的研究利用

1、1.碎磚骨料再生混凝土的研究利用碎磚骨料再生混凝土的研究利用 Research on the mixture of recycled brick aggregate concrete 2.再生混凝土抗壓抗拉強(qiáng)度取值研再生混凝土抗壓抗拉強(qiáng)度取值研 究究 On Values of Compressive Strength and Tensile Strength of Recycled Aggregate Concrete 3.再生混凝土框架抗震性能試驗研再生混凝土框架抗震性能試驗研 究究 Experimental Research on Seismic Beheavior of Recycled

2、 Concrete Frame 1. 1.前言前言 優(yōu)點：我國粘土磚廢料問題等待解決，解決此問題可以變廢為寶，帶優(yōu)點：我國粘土磚廢料問題等待解決，解決此問題可以變廢為寶，帶 來經(jīng)濟(jì)效益還能保護(hù)人類生存環(huán)境。來經(jīng)濟(jì)效益還能保護(hù)人類生存環(huán)境。 缺點：碎磚骨料代替石料缺點：碎磚骨料代替石料, ,再生砼強(qiáng)度等級，抗震等級降低。再生砼強(qiáng)度等級，抗震等級降低。 2. 2.試驗研究試驗研究 2.12.1原材料試驗原材料試驗 2.22.2試驗設(shè)計試驗設(shè)計 3 3結(jié)果分析結(jié)果分析 3.13.1配合比參數(shù)顯著性分析配合比參數(shù)顯著性分析 3.23.2確定最佳配合比確定最佳配合比 3.33.3工程性能分析工程性能分析

3、 .1拌合物和易性拌合物和易性 .2砼強(qiáng)度砼強(qiáng)度 .3砼抗震等級砼抗震等級 1.Introduction Advantages: The problem of waste brick needs to be solved in China,After do it, economic benefits will be gained ,and our living environment will be protected. Disadvantages: Strength and seismic grade of recycled brick agg

4、regate concrete will be ruduced when stone aggregate replaces brick aggregate. 2.Experimental study 2.1 Test raw materials 2.2 Experimental design 3.Results analysis 3.1 Significance analysis of mixture-ratio parameters 3.2 The optimum mixture-ratio 3.3 Engineering performance analysis 3.3.1 Workabi

5、lity of mixture 3.3.2 Strength of concrete 3.3.3 Seismic grade of concrete 1.摘要：摘要：用正交法試驗分析了碎磚骨料混凝土的配合比，提 出水灰比和碎磚骨料摻量分別是影響混凝土強(qiáng)度和流動性的 主要因素。倡導(dǎo)用碎磚做混凝土骨料，保護(hù)生態(tài)環(huán)境。 關(guān)鍵詞：關(guān)鍵詞：碎磚骨料混凝土；生態(tài)環(huán)境；建筑節(jié)能；工程性能 Abstract：The mixture of brick aggregate concrete is studied in orthogonal experiment design The paper summarize

6、s that primary factors of strength and fluidity are respectively water-cement ratio and brick aggregateIt calls for using waste brick as aggregate of concrete to protect environment Keywords：Brick aggregate concrete；ecological environment；building energy efficiency；engineering properties 3. 3.摘要：摘要：

7、本文通過5榀再生骨料摻量分別為30、50、100 再生混凝土框架和1榀普通混凝土框架的低周反復(fù)荷載試驗， 研究了再生混凝土框架的抗震性能，主要包括框架的破壞現(xiàn) 象、破壞機(jī)制、滯回曲線、骨架曲線、特征荷載和特征位移、 剛度退化和耗能能力等，并和普通混凝土框架進(jìn)行對比分析。 研究表明，再生混凝土框架有較好的抗震性能，隨著再生骨 料摻量的增加，再生混凝土框架的抗震性能沒有明顯降低。 再生混凝土框架應(yīng)用于實際工程是可行的。 本文還通過1榀 用再生輕質(zhì)砌塊充填、再生骨料摻量為50的再生混凝土框 架的低周反復(fù)荷載試驗，研究了填充墻再生混凝土框架的破 壞現(xiàn)象、破壞機(jī)制、滯回曲線、骨架曲線、特征荷載和特征 位

8、移、剛度退化和耗能能力等，并和其它框架試驗結(jié)果進(jìn)行 對比分析。研究表明，填充墻和框架共同工作性能良好，框 架剛度和抵抗水平荷載的能力大大加強(qiáng)，其變形和耗能能力 較差，同時填充墻對主體框架結(jié)構(gòu)的影響應(yīng)引起設(shè)計者重視。 文中用有限元分析程序ANSYS對再生混凝土框架的非線性受 力性能進(jìn)行模擬，并和試驗結(jié)果進(jìn)行對比分析。分析表明， 理論計算結(jié)果和試驗結(jié)果吻合較好，可以作為工程設(shè)計的依 據(jù)，用ANSYS程序?qū)υ偕炷量蚣芙Y(jié)構(gòu)進(jìn)行受力分析是可 行的。 Abstract:This paper through experiments of five recycled aggregate concrete

9、frames with contain recycled aggregate proportion of 30% 、 50% 、 100%, and one common concrete frame under low reversed cyclic loads and invariable vertical loads, seismic behavior of recycled concrete frame were studied, such as failure pattern, hysteresis loops, displacement ductility, deteriorati

10、on of stiffness and energy dissipation etc, and compared with natural concrete frame. The test results show that recycled aggregate concrete frames have well seismic performance, and with the increasing of recycled aggregate proportion, the seismic performances of recycled aggregate concrete frames

11、have not play down obviously. This indicated that recycled aggregate concrete frame apply to practicality engineering is feasible.This paper still through experiments of one recycled aggregate concrete frame with contain recycled aggregate proportion of 50%, and infilled with recycled lightweight ma

12、sonry blocks under low reversed cyclic loads and invariable vertical loads, seismic behavior of recycled concrete frame infilled with recycled lightweight masonry blocks were studied, such as failure pattern, hysteresis loops, displacement ductility, deterioration of stiffness and energy dissipation

13、 etc, and compared with other concrete frames. The test results show that infilled wall and frame cam work together well, stiffness and capacity of resistive horizontal loads of frame are strengthened obviously, but deformation and energy dissipation performance are weakly than other frames, and the

14、 influences of infilled wall of frame on main frame structure should arouse attention of designers.Computer simulations on all reinforced concrete frames under low reversed cyclic lateral loading have been performed via ANSYS a great finite element analysis program on the basis of non-linear finite

15、element analysis theory on recycled concrete, and compared with test results. 前言 粘土磚作為傳統(tǒng)的建筑材料，在全國各地均有大量生產(chǎn)， 盡管國家近年來禁止在大型中心城市使用粘土實心磚，但在 經(jīng)濟(jì)欠發(fā)達(dá)地區(qū)和邊遠(yuǎn)地區(qū)依舊生產(chǎn)使用。就是在中心城市， 生產(chǎn)和使用符合政策規(guī)定的粘土空心磚也是允許的，而且發(fā) 展迅猛，由此產(chǎn)生的粘土磚廢料在一些省份有增無減，占地 和污染環(huán)境的壓力依然存在。另外，建筑物建造、拆除中產(chǎn) 生的碎磚、碎瓦塊，粘土磚質(zhì)量檢測的棄料等，都增大了這 方面的壓力。因此，如何有效地利用這些廢磚是一個亟待解 決的問

16、題。 本文探討了將廢磚破碎后用作混凝土骨料的可行性，研 究碎磚骨料混凝土配合比設(shè)計的方法，目的是促進(jìn)廢磚資源 化再生利用，其成果尤其適用于缺乏天然骨料的地區(qū)。 Introduction Clay brick as a traditional building materials,have a large number of production all over the country , and is widely used in the underdeveloped regions and remote areas although the center of the large citi

17、es shall be forbidden to use clay solid brick in recent years . In the center of city, the production and use is allowed according to the State Policy, and developing rapidly,but the waste of clay brick have increased in some provinces, which caused covering and pollution pressure . In addition,the

18、pressurer of rubble,crock and clay brick etc. have also been increased when building is contrusted or demolished .Therefore, how to effectively use these waste brick is a problem to be solved. This article discusses the feasibility used for the concrete aggregate of the waste brick after crushing ,

19、and researches the design method of brick aggregate concrete mixture ratio , which purpose is to promote recycling waste brick, its achievement is especially suitable to the area lacking of natural aggregate. 試驗原材料 膠凝材料用32.5普通水泥，細(xì)骨料用天然河砂。粗骨料 有兩種，一是用普通碎石，二是用碎磚做粗骨料。 試驗設(shè)計 正交設(shè)計是一種安排多因素試驗的數(shù)學(xué)方法。文章通過 正交試驗設(shè)計，計算分析水灰比、砂率，以及碎磚骨料取代 碎石骨料的百分率三個配合比參數(shù)對混凝土強(qiáng)度影響的顯著 程度，探討碎磚骨料混凝土的配合比設(shè)計規(guī)律，確定碎磚骨 料混凝土的最優(yōu)配合比，為今后廢磚骨料混凝土的商品化使 用提供依據(jù)。 raw materials 32.5portland cement ,natural river sand,rubble ordinary gravel