WO2017052481A1 - Procédé de détermination d'une proportion de mélange de béton par les vides minimaux dans les agrégats et la répartition de la pâte pure - Google Patents

Procédé de détermination d'une proportion de mélange de béton par les vides minimaux dans les agrégats et la répartition de la pâte pure Download PDF

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Publication number
WO2017052481A1
WO2017052481A1 PCT/TH2016/000079 TH2016000079W WO2017052481A1 WO 2017052481 A1 WO2017052481 A1 WO 2017052481A1 TH 2016000079 W TH2016000079 W TH 2016000079W WO 2017052481 A1 WO2017052481 A1 WO 2017052481A1
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WO
WIPO (PCT)
Prior art keywords
cement paste
mixed aggregates
void
find
sharing
Prior art date
Application number
PCT/TH2016/000079
Other languages
English (en)
Inventor
Winai OUYPORNORASERT
Original Assignee
Ouypornorasert Winai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from TH1501005751A external-priority patent/TH167212B/th
Application filed by Ouypornorasert Winai filed Critical Ouypornorasert Winai
Priority to CN201680030058.8A priority Critical patent/CN107614223B/zh
Publication of WO2017052481A1 publication Critical patent/WO2017052481A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0404—Proportioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C9/00—General arrangement or layout of plant
    • B28C9/002—Mixing systems, i.e. flow charts or diagrams; Making slurries; Involving methodical aspects; Involving pretreatment of ingredients; Involving packaging
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0032—Controlling the process of mixing, e.g. adding ingredients in a quantity depending on a measured or desired value

Definitions

  • This invention relates to the field of engineering in the part of a method to find concrete mix proportions by minimum void in aggregates and sharing of cement paste.
  • the objective of this invention was to solve the problems mentioned above by developing a method to find new concrete mix proportions by using techniques of minimum void in mixed aggregates and sharing of cement paste.
  • the method is composed of collection or testing for engineering properties of aggregate, determining the maximum nominal size of aggregate according to the conditions of products or working conditions, selection of number of nominal sizes of aggregate and nominal sizes of aggregate available, a systematic finding of the minimum void in mixed aggregates based on an adaptive scheme of experimental designs, for the selected void in mixed aggregates determining a water-cement ratio to meet the target compressive strength according to the pre-specified specifications of the products or working conditions, determining lower and upper bounds of cement paste required from the addition of the selected void in mixed aggregates, amount of the film of cement paste coating surface of each particle of aggregates and the amount of cement paste film shared at all contact surfaces, which reflect the statistical uncertainty at the level of confidence interval required, from the main concrete mix proportions determining other admixtures for other properties according to pre- specified criteria of the products or the working conditions, adjusting concrete mix
  • the goal of this invention was to use the new method to find concrete mix proportions for general applications without any substitute material, to reduce cement consumption, to produce denser and more durable concrete with properties satisfied with all pre- specified engineering specifications.
  • the proposed method could be applied for concrete production with any source of aggregate.
  • Fig. 1A I B and 1 C show the models of sharing cement paste at the contact surfaces.
  • Fig. 2A, 2B, 2C, 2D, 2E and 2F show the models of sharing the film of cement paste coating particles of aggregate for different number of contact surfaces.
  • Fig. 3A, 3B, 3C, 3D, 3E and 3F show the models of sharing the film of coating cement paste between different types of aggregate.
  • Fig. 4A and 4B show the sharing of coating cement paste in the cross and longitudinal sections of the standard cylinder concrete.
  • Fig. 5 shows the sharing of coating cement paste in the cross section of the concrete pile products.
  • Fig. 6 shows the flow diagram for determining concrete mix proportions with the proposed method.
  • Fig. 7 shows the value of the sample at percentile p.
  • Fig. 8 shows determination of the mean value from an engineering specification.
  • Fig. 9 shows a distribution function fitted to a given set of data.
  • the compressive strength of concrete means the compressive strength of the standard cylinder specimen of 15 cm in diameter and 30 cm in height at the age of 28 days.
  • Fine aggregate (1 ) is the aggregate with the particle sizes less than 4.75 mm.
  • Coarse aggregate (2) is the aggregate with the particle sizes not less than 4.75 mm.
  • Forms of cement paste are composed of:
  • Film of coating cement paste (3) is the film of cement paste coating around each particle of aggregate and other materials such as the wall of the moulds, additional materials and reinforcement etc. This film is calculated from the diameter of a cement particle coated by water around its surface. The quantity of water film has to be sufficient for complete hydration of cement.
  • the film of the shared cement paste (4) is the film of coating cement paste shared between the contact surfaces of each particle of aggregate and other materials.
  • cement paste of void in mixed aggregates (5) is the cement paste in the void in coated mixed aggregates and other coated materials.
  • Fig. 1A the model shows the distances among particles of mixed aggregates, which effect on sharing of the films of cement paste at the contacted surfaces within concrete that is composed of fine aggregate (1 ) and coarse aggregate (2).
  • fine aggregate (1 ) and coarse aggregate (2) In the case that a pair of two particles is too far from each other, there will be no sharing between the two particles (5).
  • the coating film of cement paste around the two particles can be shared (3) called the film of shared cement paste (4) which could be zoomed in as shown in Fig. 1 B and 1 C.
  • the concrete mixture is composed of a lot of particles of mixed aggregates.
  • Each particle of mixed aggregates can be close to a single or multiple particles. Consequently this will effect on the numbers of contact surfaces for shared films of coating cement paste (4) which are unequal as shown in Fig. 2A, 2B, 2C, 2D, 2E and 2F for one, two, three, four, five and six contact surfaces, respectively.
  • the films of shared cement paste (4) can be formed between a pair of particles of the same type of aggregate and a pair of particles of different types of aggregate as well as a particle of aggregate with other materials such as:
  • the film of the shared cement paste form the cylindrical specimen of concrete (8) can be compared with the film of the shared cement paste from the model (4) as shown in Fig. 1A, I B and 1 C,
  • the cement paste within voids in mixed aggregates from the cylinder of concrete (9) can be compared with the cement paste in mixed aggregates from the model (5) as shown in Fig. 1A,
  • Sharing of the coating cement paste film between a pair of particles of fine aggregate in the cylinder concrete (10) can be compared with the figure of the model Figure 3A,
  • Sharing of the coating cement paste film between a particle of fine aggregate and a particle of coarse aggregate (1 1) can be compared with the figure of the model Fig. 3B
  • Sharing of the coating cement paste film between a pair of particles of coarse aggregate (12) can be compared with the figure of the model Fig. 3E
  • Sharing of the coating cement paste film between a particle of fine aggregate and the wall of the mould or additional materials (13) can be compared with the figure of the model Fig. 3C,
  • Sharing of the coating cement paste film between a particle of fine aggregate and the reinforcement ( 14) can be compared with the figure of the model Fig. 3D
  • the method to find concrete mix proportion by minimum void in mixed aggregates and sharing of cement paste is composed of the steps in form of the flow diagram as shown in Fig. 6 in the following:
  • a. Use an adaptive scheme of experimental designs for finding minimum void in mixed aggregates for the number of nominal sizes of aggregate at least two depending upon the following conditions: i.
  • the adaptive scheme for finding void in mixed aggregates starts from mixed proportion of each nominal size of aggregate in a wide interval and with at least one internal point.
  • the scheme for finding void in mixed aggregates utilizes all possible values of proportion of each type of aggregate or some values. b. Find void in mixed aggregates for each pattern according to any standard test, at least one time for each pattern with the steps as described in the following:
  • the mathematical model can be of any kind which can yield the optimum value within the domain of each nominal size of aggregate e.g. polynomial of second order or higher order,
  • Independent variables in the mathematical model is the proportion of each nominal size of aggregate and the number of independent variables is always the number of nominal sizes of aggregate minus one,
  • the mean value of void in mixed aggregates for each pattern of experiments should be used.
  • the expectation of the amount of cement paste film coating at the surfaces of particles of aggregate and the amount of cement paste film shared at the contact surfaces of aggregate are calculated from statistics or the mean values of the particle size of cement, thickness of cement paste film and the particle size of each nominal size of aggregate.
  • the expectation of the amount of cement paste film coating aggregate and the amount of cement paste film shared at the contact surfaces of aggregate can be improved by using the actual types of distributions for the particle size of cement, the thickness of cement paste film and the particle size of each type of aggregate.
  • the boundary of the amount of cement paste is calculated from the expectation of the amount of cement paste film coating at the surfaces of particles of aggregate, the expectation of the amount of cement paste film shared at the contact surfaces of aggregate and the amount of cement paste within the void in mixed aggregates at percentile p as shown in Fig. 7.
  • the lower bound of the amount of cement paste is calculated from the expectation of the amount of cement paste film coating at the surfaces of aggregate plus the expectation of the amount of cement paste within the void in mixed aggregates at percentile p minus the expectation of the amount of the cement paste film shared at the contact surfaces of aggregate,
  • the upper bound of the amount of cement paste is calculated from the expectation of the amount of cement paste film coating at the surface of aggregate plus the expectation of the amount of cement paste within the void in mixed aggregates at percentile p.
  • pf The value of pf should be pre-specified and normally pf is be set to 5%.
  • Fine Aggregate 1015:301 :772 kg.
  • Cement paste required for coating particles of Coarse Aggregate 1 0.00173/Volume.
  • Cement paste required for coating particles of Coarse Aggregate 2 0.0143/Volume.
  • Cement paste required for coating particles of Fine Aggregate 0.29644/Volume.
  • the nominal maximum size of aggregate 19 mm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Le procédé selon l'invention consiste à déterminer une proportion de mélange de béton par les vides minimaux dans les agrégats mixtes et la répartition de la pâte pure au moyen de la détermination systématique des vides minimaux dans les agrégats mixtes par l'utilisation d'un schéma adaptatif de conceptions expérimentales et par la répartition de la pâte pure qui est calculée à partir du film de pâte pure de revêtement sur les surfaces des particules d'agrégat et du film de pâte pure partagé aux surfaces de contact de l'agrégat. Ce nouveau procédé permet d'obtenir des proportions de mélange de béton pour des applications générales.
PCT/TH2016/000079 2015-09-23 2016-09-23 Procédé de détermination d'une proportion de mélange de béton par les vides minimaux dans les agrégats et la répartition de la pâte pure WO2017052481A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680030058.8A CN107614223B (zh) 2015-09-23 2016-09-23 通过骨料中的最小空隙和水泥浆的共用来找到混凝土配比的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TH1501005751A TH167212B (th) 2015-09-23 วิธีการหาส่วนผสมคอนกรีตด้วยช่องว่างมวลรวมคละต่ำสุดและการแบ่งปัน เพสต์ซีเมนต์
TH1501005751 2015-09-23

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109657909A (zh) * 2018-11-13 2019-04-19 北京国电龙源环保工程有限公司 一种基于大数据的脱硫磨制系统水料比调整方法及系统
WO2019130331A1 (fr) * 2017-12-29 2019-07-04 Ravikumar P Béton de résine de polyester utilisant une carte de circuit imprimé en poudre recyclée
WO2020072032A1 (fr) * 2018-10-01 2020-04-09 Hewlett-Packard Development Company, L.P. Détermination de rapports de matériaux de construction pour obtenir des caractéristiques sélectionnées
CN112699586A (zh) * 2020-12-30 2021-04-23 哈尔滨工业大学 利用混凝土优化配比得到低温欧姆热养护关系的预测法
CN113221476A (zh) * 2021-04-23 2021-08-06 湘潭大学 一种基于离散元的混凝土流动行为的预测方法
CN113929410A (zh) * 2021-09-27 2022-01-14 浙江交工集团股份有限公司 一种基于可压缩堆积模型的自密实混凝土的制备方法
CN114510760A (zh) * 2022-01-19 2022-05-17 南京航空航天大学 一种基于离散元的大孔隙混凝土抗压试件模型构建方法
CN114790093A (zh) * 2021-01-26 2022-07-26 中国石油天然气股份有限公司 一种水泥浆的确定方法
CN114842919A (zh) * 2022-04-15 2022-08-02 成都建工赛利混凝土有限公司 一种基于混凝土原材料信息的全级配配合比计算方法
CN116663378A (zh) * 2023-05-23 2023-08-29 合肥工业大学 一种考虑再生砂颗粒形貌的级配优化方法
CN116678885A (zh) * 2023-08-03 2023-09-01 福建南方路面机械股份有限公司 基于深度学习的水洗粗骨料含泥检测控制方法及装置
CN117524357A (zh) * 2023-10-13 2024-02-06 安徽省交通规划设计研究总院股份有限公司 一种透水混凝土胶凝材料用量确定方法

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Publication number Priority date Publication date Assignee Title
CN113378400B (zh) * 2021-06-25 2022-05-31 浙江交工集团股份有限公司 一种水泥混凝土配合比设计方法及系统
CN114702274B (zh) * 2022-04-21 2022-12-13 中南大学 一种自密实混凝土配合比设计方法

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019130331A1 (fr) * 2017-12-29 2019-07-04 Ravikumar P Béton de résine de polyester utilisant une carte de circuit imprimé en poudre recyclée
WO2020072032A1 (fr) * 2018-10-01 2020-04-09 Hewlett-Packard Development Company, L.P. Détermination de rapports de matériaux de construction pour obtenir des caractéristiques sélectionnées
CN109657909A (zh) * 2018-11-13 2019-04-19 北京国电龙源环保工程有限公司 一种基于大数据的脱硫磨制系统水料比调整方法及系统
CN109657909B (zh) * 2018-11-13 2022-07-29 国能龙源环保有限公司 一种基于大数据的脱硫磨制系统水料比调整方法及系统
CN112699586A (zh) * 2020-12-30 2021-04-23 哈尔滨工业大学 利用混凝土优化配比得到低温欧姆热养护关系的预测法
CN112699586B (zh) * 2020-12-30 2022-08-26 哈尔滨工业大学 利用混凝土优化配比得到低温欧姆热养护关系的预测法
CN114790093A (zh) * 2021-01-26 2022-07-26 中国石油天然气股份有限公司 一种水泥浆的确定方法
CN113221476A (zh) * 2021-04-23 2021-08-06 湘潭大学 一种基于离散元的混凝土流动行为的预测方法
CN113221476B (zh) * 2021-04-23 2024-04-09 湘潭大学 一种基于离散元的混凝土流动行为的预测方法
CN113929410A (zh) * 2021-09-27 2022-01-14 浙江交工集团股份有限公司 一种基于可压缩堆积模型的自密实混凝土的制备方法
CN114510760A (zh) * 2022-01-19 2022-05-17 南京航空航天大学 一种基于离散元的大孔隙混凝土抗压试件模型构建方法
CN114842919A (zh) * 2022-04-15 2022-08-02 成都建工赛利混凝土有限公司 一种基于混凝土原材料信息的全级配配合比计算方法
CN116663378A (zh) * 2023-05-23 2023-08-29 合肥工业大学 一种考虑再生砂颗粒形貌的级配优化方法
CN116663378B (zh) * 2023-05-23 2024-06-04 合肥工业大学 一种考虑再生砂颗粒形貌的级配优化方法
CN116678885A (zh) * 2023-08-03 2023-09-01 福建南方路面机械股份有限公司 基于深度学习的水洗粗骨料含泥检测控制方法及装置
CN116678885B (zh) * 2023-08-03 2023-12-19 福建南方路面机械股份有限公司 基于深度学习的水洗粗骨料含泥检测控制方法及装置
CN117524357A (zh) * 2023-10-13 2024-02-06 安徽省交通规划设计研究总院股份有限公司 一种透水混凝土胶凝材料用量确定方法
CN117524357B (zh) * 2023-10-13 2024-04-26 安徽省交通规划设计研究总院股份有限公司 一种透水混凝土胶凝材料用量确定方法

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