EP1434979A2 - Method and device for analyzing the hardening of hardenable formulations - Google Patents
Method and device for analyzing the hardening of hardenable formulationsInfo
- Publication number
- EP1434979A2 EP1434979A2 EP02777253A EP02777253A EP1434979A2 EP 1434979 A2 EP1434979 A2 EP 1434979A2 EP 02777253 A EP02777253 A EP 02777253A EP 02777253 A EP02777253 A EP 02777253A EP 1434979 A2 EP1434979 A2 EP 1434979A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- formulations
- hardening
- formulation
- sample
- measuring tip
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Definitions
- the invention relates to a method for combinatorial investigation of the hardening of n hardenable liquid or viscous formulations and a method for the investigation of hardening of individual hardenable liquid or viscous formulations.
- combinatorial materials research many new materials are produced on a small scale and checked for important material properties. By evaluating a large number of measurement results on different recipes, lead structures and structure-effect relationships are identified in so-called combinatorial process loops. These lead structures are then developed through classic optimization in application technology through to the sales product.
- Combinatorial materials research today deals with a large number of different systems. Examples are new catalysts, new structural and functional polymers or improved formulations for a variety of applications. In addition to parallel production and rapid characterization of the recipes, efficient data management is a prerequisite for the success of combinatorial materials research. This includes the automated planning of experiments, their computer-aided execution by controlling synthesis robots and measuring devices, the archiving and visualization of large amounts of data as well as the analysis of these amounts of data to find structure-effect relationships.
- the object of the invention is to provide a method for examining the hardening of concrete mixtures which can be carried out simply and quickly and which can be used in combinatorial materials research.
- the object is achieved by a method for combinatorial investigation of the hardening of curable liquid or viscous formulations,
- the degree of their hardening is determined on each of the n samples at least once by inserting a measuring tip into the sample with a specific force and measuring the maximum penetration depth achieved as a measure of the degree of hardening of this sample, and
- one or more parameters characteristic of the kinetics of curing are determined for each composition of the formulations from the measured values for the penetration depth at different times after the formulations have been prepared.
- n curable liquid or viscous formulations are provided in parallel.
- Suitable containers are, for example, the vessels of a microtiter plate.
- the formulations can be provided automatically or manually.
- an automatic pipetting device can be used, for example, which doses the individual components of the formulations into the containers in the desired amounts.
- the number n of samples provided in parallel is at least 2 and can in principle be of any size. Usually it will be 2 to 1000, preferably 10 to 1000.
- the degree of curing is determined at least once on each of the n formulations.
- a measuring tip with a certain force sticks into the formulation.
- the force that the measuring tip exerts on the sample is usually selected so that the tip penetrates the sample in the uncured state until it reaches the bottom of the container, while it no longer penetrates the sample in the fully cured state.
- the measuring tip can be made of any material.
- the measuring tip preferably has a shape which, when the sample has partially cured, only partially penetrates into the sample.
- the measuring tip is also dimensioned in terms of its diameter such that several individual measurements can be carried out on the same sample without mutual interference.
- the penetration depth of the measuring tip is measured as a measure of the degree of hardening. This is maximum in the liquid or comparatively low-viscosity state of the sample and minimal (ideally zero) in the fully cured state of the sample, and can assume values between these extremes for more or less highly viscous intermediate states of the sample.
- low viscosity and high viscosity are not absolute terms in this context, but are to be understood relative to the force exerted by the tip.
- the penetration depth is measured for a composition of the formulations at different times after the formulation has been prepared.
- the temporally offset measurements of the penetration depth can be carried out on different samples of the same composition. In order to increase the sample throughput, however, it is preferred to carry out several measurements at different times at several spatially separated locations of the same sample.
- the number of puncture points per sample depends on the diameter of the sample container and the diameter of the measuring tip and can be, for example, between 2 and 20. In the case of a standard microtiter plate with 48 containers (diameter of one container approx. 1 cm), it can be 7, for example.
- the highest sample throughput is achieved in that each sample has a different composition from all other samples. To determine the measurement inaccuracy it may make sense to carry out several essentially simultaneous individual measurements on several samples of the same composition.
- One or more parameters characteristic of the kinetics of the curing are determined for each composition from the measured values for the penetration depth at different times after the preparation of the samples.
- a suitable kinetic parameter is the time elapsed before the measured penetration depth has dropped to, for example, half the maximum value since the samples were produced.
- the penetration depth is measured automatically, preferably via a displacement transducer, and computer-controlled.
- the measured penetration depths are recorded and evaluated by a computer.
- the curable formulations can be any systems. Examples are 2-component adhesives or 2-component coating systems, the curing behavior of which is to be examined depending on the composition.
- the measuring tip is preferably cleaned automatically after each individual measurement by washing, brushing and drying.
- the measuring tip can be immersed in a washing liquid and then guided along a brush.
- a force transducer can be used instead of a displacement transducer and instead of the maximum penetration depth of the measuring tip into the sample, the force exerted on the measuring tip when the measuring tip penetrates into the sample can be measured.
- This process variant is otherwise completely analogous to the previously described variant.
- Corresponding kinetic parameters for the hardening of the formulations can be determined from the measured values for this measurement variable, which can be referred to as the penetration force, at different times after the preparation of the samples.
- a suitable kinetic parameter in this variant is the time elapsed until a certain penetration force has been reached since the samples were produced.
- a measure of the effect of a concrete plasticizing polymer is the hardening time of the cement formulation, which is called the time after Production of the cement formulation can be defined, after which the penetration depth has dropped to half of the original value.
- this value can also be determined from a comparatively small number of individual values for the depth of penetration, for example 7 individual values for each sample.
- the process according to the invention is preferably repeated several times, the composition of the formulations being varied systematically.
- the composition of the formulations being varied systematically.
- the cement formulations can be varied systematically from a variety of points of view. Examples are the type and quantity ratio of the monomers contained in the polymers, polymer architecture (use of block copolymers, graft copolymers, statistical copolymers, alternating copolymers, multiblock copolymers), degree of branching, tacticity (isotactic, syndiotactic, atactic), molecular weight, molecular weight distribution, charge state (cationic, anionic, non-ionic), concentration of the polymers in the cement mixture and type of cement used.
- the invention also relates to a device for combinatorial investigation of the hardening of curable liquid or viscous formulations, comprising
- an automatic displacement sensor connected to the measuring tip for measuring the penetration depth of the measuring tip lowered into the sample
- an automatic control, data acquisition, and data evaluation system for controlling the positioner and the robot arm and acquiring and storing the penetration depths measured by the displacement sensor.
- the method according to the invention makes use of a particularly simple and quick method for determining the hardening time of cement formulations. This method of determination can easily be used for only one sample.
- the present invention therefore also relates to a method for examining the hardening of a liquid or viscous hardenable formulation, in particular a cement formulation.
- the degree of hardening of the sample is determined several times, by inserting a measuring tip into the sample several times and at different times with a certain force at spatially separated locations, and measuring the maximum penetration depth achieved as a measure of the degree of hardening of this sample, and
- one or more parameters characteristic of the kinetics of curing are determined for the formulation from the measured values for the penetration depth at different times after the formulation has been prepared.
- the present invention also relates to a device for examining the hardening of a liquid or viscous hardenable formulation, in particular a cement formulation
- an automatic displacement sensor connected to the measuring tip for measuring the penetration depth of the measuring tip lowered into the sample
- an automatic control, data acquisition and data evaluation system for controlling the positioner and the robot arm and for detecting and storing the penetration depths measured by the displacement sensor.
- FIG. 1 a shows the supervision of an individual sample, designated as a whole with 8, with successive puncture points 1 to 7.
- FIG. 1b shows sections through a vessel 12 of a microtiter plate with a single sample 11 with different penetration depths of the tip 10 during different phases of curing 9a (low-viscosity), 9b (high-viscosity) and 9c (hardened).
- FIG. 2 shows a side view of a device for carrying out the method according to the invention with a mechanical positioner 20.
- the positioner moves to the desired vessel of a multi-sample holder 23 and lowers the measuring tip 21 into the vessel with the sample.
- a dial gauge 22 with displacement transducer measures the depth of penetration of the measuring tip. The measured penetration depth is automatically transferred to a computer, saved and evaluated.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10148567A DE10148567A1 (en) | 2001-10-01 | 2001-10-01 | Method and device for examining the hardening of curable formulations |
DE10148567 | 2001-10-01 | ||
PCT/EP2002/010910 WO2003029784A2 (en) | 2001-10-01 | 2002-09-27 | Method and device for analyzing the hardening of hardenable formulations |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1434979A2 true EP1434979A2 (en) | 2004-07-07 |
Family
ID=7701099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02777253A Withdrawn EP1434979A2 (en) | 2001-10-01 | 2002-09-27 | Method and device for analyzing the hardening of hardenable formulations |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050000274A1 (en) |
EP (1) | EP1434979A2 (en) |
JP (1) | JP2005504316A (en) |
DE (1) | DE10148567A1 (en) |
WO (1) | WO2003029784A2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4967982B2 (en) * | 2007-10-17 | 2012-07-04 | 株式会社大林組 | Curing degree judgment method |
DE102012218814A1 (en) * | 2012-10-16 | 2014-04-17 | Robert Bosch Gmbh | Method of determining homogeneity of liquid, pasty or creamy formulation, involves mixing formulation in sample vessel, and comparing measured values before and after mixing of formulation |
DE102014014016A1 (en) * | 2014-09-25 | 2016-03-31 | Sca Schucker Gmbh & Co. Kg | Method and device for determining the curing behavior of an adhesive or sealant bead |
CN104792660A (en) * | 2015-04-23 | 2015-07-22 | 长安大学 | Device and method for measuring permeability of asphalt recycling agent |
CN106769445A (en) * | 2016-11-25 | 2017-05-31 | 太原理工大学 | A kind of indoor static pressure perforation device for determining compression strength of building mortar |
DE102017115798A1 (en) | 2017-07-13 | 2019-01-17 | Alanod Gmbh & Co. Kg | Reflective composite material, in particular for surface-mounted components (SMD), and light-emitting device with such a composite material |
JP6932086B2 (en) * | 2018-01-15 | 2021-09-08 | 鹿島建設株式会社 | Concrete surface hardness measuring instrument and concrete surface hardness measuring method |
CN111089818B (en) * | 2020-03-10 | 2020-12-11 | 湖北建夷检验检测中心有限公司 | Cement detection device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2911985C2 (en) * | 1979-03-27 | 1981-01-29 | Zavod Za Raziskavo Materiala In Konstrukcij Ljubljana N.Sol.O., Laibach (Jugoslawien) | Needle device for determining the setting times of cement |
CH647868A5 (en) * | 1980-06-24 | 1985-02-15 | Fischer Ag Georg | Appliance for determining the progress with time of the degree of curing of a resin-bound sand specimen |
JPS59131547A (en) * | 1983-01-19 | 1984-07-28 | ダイセル化学工業株式会社 | Cement composition for underwater construction |
AT389588B (en) * | 1987-04-29 | 1989-12-27 | Mayreder Keil List Bau | METHOD FOR CHECKING THE SOLIDIFICATION BEHAVIOR OR THE SETTING SPEED OF CEMENT-BONDED MATERIALS AND DEVICE FOR CARRYING OUT THE METHOD |
GB8721043D0 (en) * | 1987-09-08 | 1987-10-14 | British Cast Iron Res Ass | Portable device |
DE8912608U1 (en) * | 1988-10-22 | 1989-12-28 | Rk Toni Technik Baustoffpruefsysteme Gmbh, 1000 Berlin, De | |
FR2743933B1 (en) * | 1996-01-22 | 1998-04-24 | Limours Const Elect Electro | ELECTROMAGNETIC ACTUATOR, DEVICE AND METHOD FOR MEASURING THE CURING TIME OF A PASTE, USING THE SAME, AND MULTI-POSITION AUTOMATIC PRISOMETER INCLUDING THIS DEVICE |
US5650005A (en) * | 1996-05-29 | 1997-07-22 | Lafarge Canada Inc. | Process for high free lime content in cement clinker |
-
2001
- 2001-10-01 DE DE10148567A patent/DE10148567A1/en not_active Withdrawn
-
2002
- 2002-09-27 JP JP2003532947A patent/JP2005504316A/en active Pending
- 2002-09-27 EP EP02777253A patent/EP1434979A2/en not_active Withdrawn
- 2002-09-27 WO PCT/EP2002/010910 patent/WO2003029784A2/en active Application Filing
- 2002-09-27 US US10/491,423 patent/US20050000274A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO03029784A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2003029784A3 (en) | 2003-11-13 |
WO2003029784A2 (en) | 2003-04-10 |
US20050000274A1 (en) | 2005-01-06 |
DE10148567A1 (en) | 2003-07-31 |
JP2005504316A (en) | 2005-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2607919B2 (en) | Process for the accelerated determination of the 28-day standard compressive strength of setting materials in construction and a device for carrying out such a process | |
EP0288653B1 (en) | Method for testing the setting behaviour or rate of cement-bound masses, and apparatus for carrying out the method | |
EP1434979A2 (en) | Method and device for analyzing the hardening of hardenable formulations | |
EP0929807B1 (en) | Method and device for measuring painted test tables | |
CH671636A5 (en) | ||
DE102005007111A1 (en) | Device for on-line rotation / oscillation rheometry | |
EP1522847B1 (en) | Analytical method for determining crystallographic phases of a sample | |
DE10055448A1 (en) | Determination of swelling behavior of superabsorbent materials such as polymer gels, involves measurement of movement of a tube used to apply pressure to the material | |
DE10030602A1 (en) | Method and device for determining the moisture content in multi-component mixtures | |
DE2827593B2 (en) | Process for the determination of rheological parameters of viscoelastic substances | |
DE102008035257B4 (en) | Tribological process | |
EP3198256B1 (en) | Method and device for determining the curing behaviour of an adhesive- or sealant bead | |
EP4028153B1 (en) | Method for filling reactors and for examining catalytic reactors | |
DE2932288A1 (en) | METHOD AND DEVICE FOR TESTING THE STRENGTH OF PHARMACEUTICAL GRANULES, MICROCAPSULES, TABLETS, DRAGEES AND SUPPOSITORIES | |
DE19958489A1 (en) | Method and device for shear stressing liquid media, in particular coating agents | |
DE102006051314A1 (en) | Method and device for checking the surface quality of coated or uncoated substrates | |
AT394905B (en) | Method and equipment for measuring the properties, particularly the ability to be compacted, of a stiff, castable compound | |
DE3543795C2 (en) | ||
DE102012218814A1 (en) | Method of determining homogeneity of liquid, pasty or creamy formulation, involves mixing formulation in sample vessel, and comparing measured values before and after mixing of formulation | |
DE102019216892B3 (en) | Rheology lance | |
DE4039083A1 (en) | Measuring building material characteristics in concrete mixer - measuring load on mixer drive and computing characteristics from stored relationship | |
DE19611528C1 (en) | On-line viscosity determination and control by measurement of current supplied to mixer motor | |
EP0864727A3 (en) | Method and device for taking samples of soil | |
DD267565A1 (en) | METHOD FOR CHARACTERIZING THE HYDRAULIC BEHAVIOR OF SOLIDS | |
DE102011115519A1 (en) | Method for testing material, particularly for hardness testing, involves producing impression in to be tested material in experimental manner with test body with known geometry and with known test load |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
17P | Request for examination filed |
Effective date: 20040513 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LEHMANN, STEPHAN Inventor name: HADELER, JOACHIM Inventor name: KOLTZENBURG, SEBASTIAN Inventor name: MUELLER, THORSTEN Inventor name: KRONER, MATTHIAS Inventor name: SCHROF, WOLFGANG |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BASF SE |
|
17Q | First examination report despatched |
Effective date: 20090519 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: METHOD FOR ANALYZING THE HARDENING OF HARDENABLE FORMULATIONS |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20091107 |