CN104655545A - Method for measuring void ratio of macadam mixture - Google Patents

Method for measuring void ratio of macadam mixture Download PDF

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Publication number
CN104655545A
CN104655545A CN201510121738.8A CN201510121738A CN104655545A CN 104655545 A CN104655545 A CN 104655545A CN 201510121738 A CN201510121738 A CN 201510121738A CN 104655545 A CN104655545 A CN 104655545A
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water
macadam
bucket
aggregate mix
measuring
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CN201510121738.8A
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Inventor
马松林
单丽岩
廖秋杰
李酉勇
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Harbin Institute of Technology
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Harbin Institute of Technology
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Priority to CN201510121738.8A priority Critical patent/CN104655545A/en
Publication of CN104655545A publication Critical patent/CN104655545A/en
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Abstract

The invention discloses a device and a method for measuring the void ratio of a macadam mixture and relates to a method for measuring the void ratio of a mixture. According to the method, the problem that a temperature correction factor alphaT of water density is difficult to be obtained because the measurement of aggregate quality and the calculation of density need to be carried out for several times at different states in a traditional void ratio measurement method is solved. The method comprises the following steps: (1) soaking the macadam mixture in water for 24 hours; (2) detaching four foot screws; (3) carrying out vibration compaction on the macadam mixture by virtue of a compaction instrument; (4) measuring the height from the upper surface of the macadam mixture to the top surface of a measurement bucket for several times, and recording an average height value as h1; (5) detaching a seal valve, mounting a water guide pipe, and regulating the foot screws to keep a base plate horizontal; (6) injecting water into the measurement bucket until water flows out of a water outlet, and recording volume Vf2 of added water and volume Vf0 of water flowing out of the water outlet in the water injection process; and (7) calculating the void ratio KV of the macadam mixture by virtue of measurement results of the steps, wherein KV is equal to formula (shown in the specification). The method is used for calculating the void ratio of the macadam mixture.

Description

A kind of method measuring macadam-aggregate mix voidage
Technical field
The present invention relates to a kind of method measuring mixture gap rate, be specifically related to a kind of method measuring macadam-aggregate mix voidage.
Background technology
Coarse aggregate tamping state voidage is an important parameter in the mix-design such as asphalt and inorganic binder, it reflects the skeleton structure characteristic of compound, can be used for the consumption estimating host material.The void ratio in frames of material tamping state is pressed following formula (4) and is calculated:
VCA DRC = ( 1 - ρ 1 ρ 2 ) × 100 % - - - ( 4 )
In formula:
VCA dRC---the void ratio in frames of coarse aggregate under tamping state, %;
ρ 1---the bulk density of coarse aggregate under tamping state, g/cm 3;
ρ 2---the bulk density of coarse aggregate, g/cm 3;
ρ in formula (4) 1, ρ 2obtained by following methods experiment calculation respectively:
ρ 1for the bulk density under the tamping state of coarse aggregate, its measuring principle is with reference to the regulation of " highway engineering gather materials testing regulations " (JTJ 058-2000 T0309), be become volume to be in the capacity tube of V the even tamping of material vibrating spear of drying, and claim its quality to be m 2, pour out material and claim the quality of capacity tube is m again 1, the bulk density of (5) Calculating material according to the following formula.
ρ 1 = m 2 - m 1 V - - - ( 5 )
In formula:
ρ 1---the bulk density of coarse aggregate under tamping state, g/cm 3;
M 1---the quality of capacity tube, g;
M 2---the gross mass of capacity tube and sample, g;
The volume of V---capacity tube, cm 3;
ρ 2for the bulk density of coarse aggregate, its measuring principle is with reference to the regulation of " highway engineering gather materials testing regulations " (JTJ 058-2000T0309), and its weight of title after drying under rated condition (drying to constant weight for 105 ± 5 DEG C) of will gathering materials is m a, then drying gathered materials be contained in metal hanging basket the 24h that soaks, clearance gap is absorbed water saturated, on hydrostatic balance, then weigh up full water to gather materials the quality m in water a, then claim its saturation plane dry mass m after toweling off surface water that dry full water gathers materials f, the bulk density of coarse aggregate is finally calculated by following formula (6) and formula (7):
γ 2 = m a m f - m w - - - ( 6 )
ρ 2＝(γ 2-α T)ρ w(7)
In formula:
M a---the dries quantity gathered materials, unit g;
M f---the saturation plane dry mass gathered materials, unit g;
M w---the quality after the full water that gathers materials in water, unit g;
γ 2---gather materials bulk specific gravity;
α t---water temperature correction factor when test temperature is T;
ρ w---the density of water when 4 DEG C, get 1.00g/cm 3.
Traditional void fraction determination method adopts above-mentioned measuring method, namely calculates the void ratio in frames VCA of coarse aggregate under tamping state dRC, the method needs to carry out repeatedly the measurement of aggregate quality and the calculating of density under different conditions to tested macadam-aggregate mix; From above-mentioned formula (4), (5), (6), (7), test procedure is more, complicated operation, easily occurs mistake; The temperature adjustmemt of water-mass density under test temperature is related to, its correction factor α in experiment calculation tbe difficult to obtain.
Summary of the invention
The present invention needs to carry out repeatedly the measurement of aggregate quality and the calculating of density under different conditions for solving traditional void fraction determination method; Test procedure is more, complicated operation, easily occurs mistake; The temperature adjustmemt of water-mass density under test temperature is related to, its correction factor α in experiment calculation tthe problem be difficult to obtain, and a kind of method measuring macadam-aggregate mix voidage is provided.
A kind of method measuring macadam-aggregate mix voidage of the present invention is realized by following steps:
Step one, macadam-aggregate mix is contained in metal hanging basket, metal hanging basket is loaded in vessel immersion 24 hours;
After measurement bucket in step 2, checking measurements device is water-tight, with sealing valve, water delivering orifice is sealed, and pull down four foot screws;
Step 3, dry the water on macadam-aggregate mix surface with wet towel, then loaded by the macadam-aggregate mix after full water and measure in bucket, in test bucket, add the water of 5ml ~ 10ml, now the volume of water is designated as V f1, utilize compaction test apparatus by macadam-aggregate mix vibration compaction test;
Step 4, treat that macadam-aggregate mix hits real completing after, with vernier caliper measurement macadam-aggregate mix upper surface apart from the height measuring bucket end face, measures 3 ~ 20 times, gets highly average and be designated as h 1;
Step 5, pull down sealing valve, load onto aqueduct, and load onto four foot screws, regulate foot screw to make the bubble in level tube placed in the middle, ensure floor level;
Step 6, along measurement bucket inwall slowly to water filling in measurement bucket, until water stops water filling after water delivering orifice flows out, and record in the injecting process the volume V adding water on the opposite of water delivering orifice f2with the volume V flowing out water from water delivering orifice f0;
Step 7, by above-mentioned steps measurement result, the computing formula that can obtain macadam-aggregate mix voidage is as follows:
K V = 4 V v πd 2 ( H - h 1 - h 0 ) × 100 % - - - ( 1 )
V v = V w - 1 4 πd 2 ( h 1 - h 2 ) - - - ( 2 )
V w＝V f1+V f2-V f0(3)
In formula:
K v---the voidage of macadam-aggregate mix;
V v---macadam-aggregate mix voidage;
V w---add the cumulative volume of water;
V f1---add the volume of water during rubble compacting;
V f2---be filled to along measuring bucket wall the volume measured and inject water when bucket wall there are flowing out;
V f0---test bucket water delivering orifice flows out the volume of water;
D---measure the internal diameter of bucket;
H 1---hit the macadam-aggregate mix test specimen end face in fact apart from measuring bucket end face distance;
H 0---the height of cushion block;
H 2---water delivering orifice lower edge is apart from measuring bucket end face distance;
H---measure the height of bucket;
Measurement mechanism in described step 2 comprises base plate, cushion block, measure bucket, connecting pipe, connectedness, test tube, two level tubes and four foot screws, cushion block is arranged on the upper surface of base plate, measuring bucket is arranged on the external diameter of cushion block, and measurement bucket is threaded with cushion block, the upper end sidewall measuring bucket is provided with water delivering orifice, connecting pipe is arranged on water outlet, connectedness is connected with connecting pipe, hit in real time when macadam-aggregate mix is contained in measure in bucket, connectedness adopts sealing valve, when measuring aquifer yield in bucket, connectedness adopts aqueduct, test tube is arranged on the upper surface of base plate, and the delivery outlet of test tube and aqueduct is just to setting, two level tubes are all arranged on the upper surface of base plate, vertical setting mutually between two level tubes, described base plate is provided with four threaded holes along same circumference uniform distribution, each threaded hole is threaded a foot screw, two level tubes and four threaded holes are all positioned at the outside measuring bucket.
The present invention compared with prior art has following beneficial effect:
One, method of the present invention does not need to carry out the measurement of aggregate quality and the calculating of density under different conditions, and test procedure is few, and duration of test runs is short, and duration of test runs decreases 50% compared to existing technology; Do not relate to the density revision of water at different tests temperature in experiment calculation of the present invention, directly utilize the volume of water to calculate, therefore simple to operate, not easily there is measuring error.
Two, device simple structure of the present invention, is easy to processing and operation, is convenient to the measurement of macadam-aggregate mix voidage.
Accompanying drawing explanation
Fig. 1 is one-piece construction front view of the present invention (marking 11 in figure for water), and Fig. 2 is the vertical view of Fig. 1.
Embodiment
Embodiment one: composition graphs 1 and Fig. 2 illustrate present embodiment, present embodiment is realized by following steps:
Step one, macadam-aggregate mix 10 is contained in metal hanging basket, metal hanging basket is loaded in vessel immersion 24 hours, macadam-aggregate mix clearance gap is absorbed water saturated;
After measurement bucket 3 in step 2, checking measurements device is water-tight, with sealing valve 5, water delivering orifice 3-1 is sealed, and pull down four foot screws 9;
Step 3, dry the water on macadam-aggregate mix 10 surface with wet towel, then loaded by the macadam-aggregate mix 10 after full water and measure in bucket 3, in test bucket 3, add the water of 5ml ~ 10ml, now the volume of water is designated as V f1, utilize compaction test apparatus by macadam-aggregate mix 10 vibration compaction test, compaction test apparatus is prior art;
Step 4, treat that macadam-aggregate mix 10 hits real completing after, with vernier caliper measurement macadam-aggregate mix 10 upper surface apart from the height measuring bucket 3 end face, measures 3 ~ 20 times, gets highly average and be designated as h 1;
Step 5, pull down sealing valve 5, load onto aqueduct 6, and load onto four foot screws 9, regulate foot screw 9 to make the bubble in level tube 8 placed in the middle, ensure base plate 1 level;
Step 6, along measurement bucket 3 inwall slowly to water filling in measurement bucket 3, until water stops water filling after water delivering orifice 3-1 flows out, and record in the injecting process the volume V adding water on the opposite of water delivering orifice 3-1 f2with the volume V flowing out water from water delivering orifice 3-1 f0;
Step 7, by above-mentioned steps measurement result, the computing formula that can obtain macadam-aggregate mix voidage is as follows:
K V = 4 V v πd 2 ( H - h 1 - h 0 ) × 100 % - - - ( 1 )
OV v = V w - 1 4 πd 2 ( h 1 - h 1 ) - - - ( 2 )
V w＝V f1+V f2-V f0(3)
In formula:
K v---the voidage of macadam-aggregate mix;
V v---macadam-aggregate mix voidage;
V w---add the cumulative volume of water;
V f1---add the volume volume of water (in the step 3) of water during rubble compacting;
V f2---be filled to along measuring bucket wall the volume (step 6 adds the volume of water) measured and inject water when bucket wall there are flowing out;
V f0---test bucket water delivering orifice flows out the volume (flowing out the volume of water in step 6) of water;
D---measure the internal diameter of bucket 3;
H 1---hit the macadam-aggregate mix test specimen end face in fact apart from measuring bucket end face distance;
H 0---the height of cushion block;
H 2---water delivering orifice 3-1 lower edge is apart from measuring bucket end face distance;
H---measure the height of bucket 3;
Measurement mechanism in described step 2 comprises base plate 1, cushion block 2, measure bucket 3, connecting pipe 4, connectedness, test tube 7, two level tubes 8 and four foot screws 9, cushion block 2 is arranged on the upper surface of base plate 1, measuring bucket 3 is arranged on the external diameter of cushion block 2, and measurement bucket 3 is threaded with cushion block 2, the upper end sidewall measuring bucket 3 is provided with water delivering orifice 3-1, connecting pipe 4 is arranged on water delivering orifice 3-1 place, connectedness is connected with connecting pipe 4, hit in real time when macadam-aggregate mix is contained in measure in bucket 3, connectedness adopts sealing valve 5, when measuring aquifer yield in bucket 3, connectedness adopts aqueduct 6, test tube 5 is arranged on the upper surface of base plate 1, and the delivery outlet of test tube 7 and aqueduct 4 is just to setting, two level tubes 8 are all arranged on the upper surface of base plate 1, vertical setting mutually between two level tubes 8, base plate 1 is provided with four threaded hole 1-2 along same circumference uniform distribution, each threaded hole 1-2 is threaded a foot screw 9, two level tubes 8 and four threaded holes are all positioned at the outside measuring bucket 3.Adjusting base plate 1 when four foot screws 9 are for measuring, making base plate 1 level.On the upper surface of base plate 1 and corresponding measurement below bucket 3 is provided with annular groove 1-1, rubber ring 6 is arranged in annular groove 1-1.Rubber ring 6 is for preventing spilling of water in measuring process.
Embodiment two: composition graphs 1 illustrates present embodiment, adds the water of 6ml in test bucket 3 in the step 3 of present embodiment.Other step is identical with embodiment one.
Embodiment three: composition graphs 1 illustrates present embodiment, adds the water of 7ml in test bucket 3 in the step 3 of present embodiment.Other step is identical with embodiment one.
Embodiment four: composition graphs 1 illustrates present embodiment, adds the water of 8ml in test bucket 3 in the step 3 of present embodiment.Other step is identical with embodiment one.
Embodiment five: composition graphs 1 illustrates present embodiment, adds the water of 9ml in test bucket 3 in the step 3 of present embodiment.Other step is identical with embodiment one.
Embodiment six: composition graphs 1 illustrates present embodiment, with the height of vernier caliper measurement macadam-aggregate mix 10 upper surface apart from measurement bucket 3 end face in the step 4 of present embodiment, measures 5 times; Other step is identical with embodiment one.
Embodiment seven: composition graphs 1 illustrates present embodiment, with the height of vernier caliper measurement macadam-aggregate mix 10 upper surface apart from measurement bucket 3 end face in the step 4 of present embodiment, measures 8 times; Other step is identical with embodiment one.
Embodiment eight: composition graphs 1 illustrates present embodiment, with the height of vernier caliper measurement macadam-aggregate mix 10 upper surface apart from measurement bucket 3 end face in the step 4 of present embodiment, measures 10 times; Other step is identical with embodiment one.
Embodiment nine: composition graphs 1 illustrates present embodiment, with the height of vernier caliper measurement macadam-aggregate mix 10 upper surface apart from measurement bucket 3 end face in the step 4 of present embodiment, measures 13 times; Other step is identical with embodiment one.
Embodiment ten: composition graphs 1 illustrates present embodiment, with the height of vernier caliper measurement macadam-aggregate mix 10 upper surface apart from measurement bucket 3 end face in the step 4 of present embodiment, measures 15 times; Other step is identical with embodiment one.
Application example of the present invention:
First, by the height h of cushion block 2 0be designed to 4cm, the height H measuring bucket 3 is designed to 23cm, and water delivering orifice 3-1 lower edge is apart from measuring bucket end face distance h 2be designed to 2.5cm, the internal diameter d measuring bucket 3 is designed to 15.2cm;
Step one, macadam-aggregate mix 10 is contained in metal hanging basket, metal hanging basket is loaded in vessel immersion 24 hours;
After measurement bucket 3 in step 2, checking measurements device is water-tight, with sealing valve 5, water delivering orifice 3-1 is sealed, and pull down four foot screws 9;
Step 3, dry the water on macadam-aggregate mix 10 surface with wet towel, then the macadam-aggregate mix 10 after full water is loaded and measure in bucket 3, in test bucket 3, add water (the i.e. V of 6.3ml f1=6.3ml), utilize compaction test apparatus by macadam-aggregate mix 10 vibration compaction test;
Step 4, use vernier caliper measurement macadam-aggregate mix 10 upper surface are apart from the height measuring bucket 3 end face, and measure 5 times, it is highly respectively 3.216cm, 3.232cm, 3.226cm, 3.218cm, 3.228cm, the average of height h 1 = 3.216 + 3.232 + 3.226 + 3.218 + 3.228 5 = 3.224 cm ;
Step 5, pull down sealing valve 5, load onto aqueduct 6, and load onto four foot screws 9, regulate foot screw 9 to make the bubble in level tube 8 placed in the middle, ensure base plate 1 level;
Step 6, along measurement bucket 3 inwall slowly to water filling in measurement bucket 3, until water stops water filling after water delivering orifice 3-1 flows out, in the injecting process, add the volume V of water on the opposite of water delivering orifice 3-1 f2for 484.6ml, flow out the volume V of water from water delivering orifice 3-1 f0for 4.8ml;
Step 7, calculating macadam-aggregate mix voidage:
V w＝V f1+V f2-V f0＝6.3+484.6-4.8＝486.1ml
V v = V w - 1 4 πd 2 ( h 1 - h 2 ) = 486.1 - 1 4 × 3.14 × 15.2 2 × ( 3.224 - 2.5 ) = 354.8 ml
K V = 4 V v πd 2 ( H - h 1 - h 0 ) × 100 % = 4 × 354.8 3.14 × 15.2 2 × ( 23 - 3.224 - 4 ) × 100 % = 12.4 %

Claims (10)

1. measure a method for macadam-aggregate mix voidage, it is characterized in that: described method is realized by following steps:
Step one, macadam-aggregate mix (10) is contained in metal hanging basket, metal hanging basket is loaded in vessel immersion 24 hours;
After measurement bucket (3) in step 2, checking measurements device is water-tight, with sealing valve (5), water delivering orifice (3-1) is sealed, and pull down four foot screws (9);
Step 3, to dry the water on macadam-aggregate mix (10) surface with wet towel, then being loaded by the macadam-aggregate mix (10) after full water measures in bucket (3), in test bucket (3), add the water of 5ml ~ 10ml, now the volume of water is designated as V f1, utilize compaction test apparatus by macadam-aggregate mix (10) vibration compaction test;
Step 4, treat that macadam-aggregate mix (10) hits real completing after, with vernier caliper measurement macadam-aggregate mix (10) upper surface apart from the height measuring bucket (3) end face, measures 3 ~ 20 times, gets highly average and be designated as h 1;
Step 5, pull down sealing valve (5), load onto aqueduct (6), and load onto four foot screws (9), regulate foot screw (9) to make the bubble in level tube (8) placed in the middle, ensure base plate (1) level;
Step 6, on the opposite of water delivering orifice (3-1) and along measurement bucket (3) inwall slowly to water filling in measurement bucket (3), until water stops water filling after water delivering orifice (3-1) flows out, and record in the injecting process the volume V adding water f2with the volume V flowing out water from water delivering orifice (3-1) f0;
Step 7, by above-mentioned steps measurement result, the computing formula that can obtain macadam-aggregate mix voidage is as follows:
K V = 4 V v πd 2 ( H - h 1 - h 0 ) × 100 % - - - ( 1 )
V v = V w - 1 4 πd 2 ( h 1 - h 1 ) - - - ( 2 )
V w＝V f1+V f2-V f0(3)
In formula:
K v---the voidage of macadam-aggregate mix;
V v---macadam-aggregate mix voidage;
V w---add the cumulative volume of water;
V f1---add the volume of water during rubble compacting;
V f2---be filled to along measuring bucket wall the volume measured and inject water when bucket wall there are flowing out;
V f0---test bucket water delivering orifice flows out the volume of water;
D---measure the internal diameter of bucket (3);
H 1---hit the macadam-aggregate mix test specimen end face in fact apart from measuring bucket end face distance;
H 0---the height of cushion block;
H 2---water delivering orifice (3-1) lower edge is apart from measuring bucket end face distance;
H---measure the height of bucket (3);
Measurement mechanism in described step 2 comprises base plate (1), cushion block (2), measure bucket (3), connecting pipe (4), connectedness, test tube (7), two level tubes (8) and four foot screws (9), cushion block (2) is arranged on the upper surface of base plate (1), measuring bucket (3) is arranged on the external diameter of cushion block (2), and measurement bucket (3) is threaded with cushion block (2), the upper end sidewall measuring bucket (3) is provided with water delivering orifice (3-1), connecting pipe (4) is arranged on water delivering orifice (3-1) place, connectedness is connected with connecting pipe (4), hit in real time when macadam-aggregate mix is contained in measure in bucket (3), connectedness adopts sealing valve (5), when measuring aquifer yield in bucket (3), connectedness adopts aqueduct (6), test tube (5) is arranged on the upper surface of base plate (1), and the delivery outlet of test tube (7) and aqueduct (4) is just to setting, two level tubes (8) are all arranged on the upper surface of base plate (1), vertical setting mutually between two level tubes (8), described base plate (1) is provided with four threaded holes (1-2) along same circumference uniform distribution, each threaded hole (1-2) is threaded a foot screw (9), two level tubes (8) and four threaded holes are all positioned at the outside measuring bucket (3).
2. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: the water adding 6ml in described step 3 in test bucket (3).
3. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: the water adding 7ml in described step 3 in test bucket (3).
4. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: the water adding 8ml in described step 3 in test bucket (3).
5. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: the water adding 9ml in described step 3 in test bucket (3).
6. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: in described step 4 with vernier caliper measurement macadam-aggregate mix (10) upper surface apart from the height measuring bucket (3) end face, measure 5 times.
7. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: in described step 4 with vernier caliper measurement macadam-aggregate mix (10) upper surface apart from the height measuring bucket (3) end face, measure 8 times.
8. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: in described step 4 with vernier caliper measurement macadam-aggregate mix (10) upper surface apart from the height measuring bucket (3) end face, measure 10 times.
9. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: in described step 4 with vernier caliper measurement macadam-aggregate mix (10) upper surface apart from the height measuring bucket (3) end face, measure 13 times.
10. a kind of method measuring macadam-aggregate mix voidage according to claim 1, is characterized in that: in described step 4 with vernier caliper measurement macadam-aggregate mix (10) upper surface apart from the height measuring bucket (3) end face, measure 15 times.
CN201510121738.8A 2015-03-19 2015-03-19 Method for measuring void ratio of macadam mixture Pending CN104655545A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106442259A (en) * 2016-09-22 2017-02-22 中南林业科技大学 Method and device for rapidly determining effective porosity of ecological porous concrete
CN107300520A (en) * 2017-06-28 2017-10-27 河海大学 The determination method of simple grain footpath polyurethane mixture gap rate
CN107843534A (en) * 2017-10-31 2018-03-27 绍兴文理学院元培学院 Rubble porosity lamination test device and its operate with method
CN107957391A (en) * 2017-12-13 2018-04-24 中航勘察设计研究院有限公司 A kind of coral sand inner pore measuring method
CN108051305A (en) * 2017-11-16 2018-05-18 江西理工大学 Multi- scenarios method effect indoor-bollard leaching experimental rig
CN109870398A (en) * 2019-04-02 2019-06-11 中国有色金属工业第十四冶金建设公司 Infiltration experiment system
CN111086142A (en) * 2019-12-26 2020-05-01 谢祯宇 Dynamic filling amount process method for rubber material of molded rubber composite product

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020162383A1 (en) * 2000-05-30 2002-11-07 Ali Regimand Systems and methods for determining the porosity and/or effective air void content of compacted material
CN1508531A (en) * 2002-12-13 2004-06-30 石油大学(北京) Method for determining compact rock porosity
CN101403683A (en) * 2008-11-17 2009-04-08 长安大学 Method for analyzing porous asphalt mixture gap structure by using CT technology
CN101477012A (en) * 2009-01-21 2009-07-08 交通部公路科学研究所 Method for wax-sealed measurement of asphalt mixture bulk density
CN102141502A (en) * 2010-12-30 2011-08-03 泸州品创科技有限公司 Method for measuring porosity of fermented grains
CN102608012A (en) * 2012-03-01 2012-07-25 首钢总公司 Method for calculating porosity of sinter bed
CN103033453A (en) * 2012-09-26 2013-04-10 天津市市政工程研究院 Method for measuring voidage of asphalt concrete pavement core
CN103983554A (en) * 2014-05-29 2014-08-13 扬州大学 Method for determining effective porosity of pervious concrete

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020162383A1 (en) * 2000-05-30 2002-11-07 Ali Regimand Systems and methods for determining the porosity and/or effective air void content of compacted material
CN1508531A (en) * 2002-12-13 2004-06-30 石油大学(北京) Method for determining compact rock porosity
CN101403683A (en) * 2008-11-17 2009-04-08 长安大学 Method for analyzing porous asphalt mixture gap structure by using CT technology
CN101477012A (en) * 2009-01-21 2009-07-08 交通部公路科学研究所 Method for wax-sealed measurement of asphalt mixture bulk density
CN102141502A (en) * 2010-12-30 2011-08-03 泸州品创科技有限公司 Method for measuring porosity of fermented grains
CN102608012A (en) * 2012-03-01 2012-07-25 首钢总公司 Method for calculating porosity of sinter bed
CN103033453A (en) * 2012-09-26 2013-04-10 天津市市政工程研究院 Method for measuring voidage of asphalt concrete pavement core
CN103983554A (en) * 2014-05-29 2014-08-13 扬州大学 Method for determining effective porosity of pervious concrete

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
孙武斌等: "《建筑材料性能与应用》", 30 November 2012 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106442259A (en) * 2016-09-22 2017-02-22 中南林业科技大学 Method and device for rapidly determining effective porosity of ecological porous concrete
CN107300520A (en) * 2017-06-28 2017-10-27 河海大学 The determination method of simple grain footpath polyurethane mixture gap rate
CN107843534A (en) * 2017-10-31 2018-03-27 绍兴文理学院元培学院 Rubble porosity lamination test device and its operate with method
CN108051305A (en) * 2017-11-16 2018-05-18 江西理工大学 Multi- scenarios method effect indoor-bollard leaching experimental rig
CN107957391A (en) * 2017-12-13 2018-04-24 中航勘察设计研究院有限公司 A kind of coral sand inner pore measuring method
CN107957391B (en) * 2017-12-13 2021-06-22 中航勘察设计研究院有限公司 Method for measuring inner pores of coral sand
CN109870398A (en) * 2019-04-02 2019-06-11 中国有色金属工业第十四冶金建设公司 Infiltration experiment system
CN109870398B (en) * 2019-04-02 2024-03-01 中国有色金属工业第十四冶金建设公司 Penetration test system
CN111086142A (en) * 2019-12-26 2020-05-01 谢祯宇 Dynamic filling amount process method for rubber material of molded rubber composite product

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Application publication date: 20150527