CN105891039A - Measuring method and system for water content in construction sand - Google Patents
Measuring method and system for water content in construction sand Download PDFInfo
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- CN105891039A CN105891039A CN201610214681.0A CN201610214681A CN105891039A CN 105891039 A CN105891039 A CN 105891039A CN 201610214681 A CN201610214681 A CN 201610214681A CN 105891039 A CN105891039 A CN 105891039A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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Abstract
The invention relates to a measuring method for water content in construction sand. The method includes the steps that a measuring container with a set volume is provided; sand with set weight is added into the measuring container, and the total mass of the measuring container and the added sand at the moment are weighed to obtain mass m1; the measuring container is filled with water, and the total mass of the measuring container, the sand and the filled water is weighed to obtain mass m2; the mass of the filled water is calculated to obtain mass mjw; the water content in the sand is obtain through a water content calculation formula. The water content in the sand can be obtained through two-time weighing, and the implement method is easy, saves measuring time, energy and cost, improves measurement efficiency and provides large benefits for a construction site. Compared with a drying method, time needed for measuring is greatly shortened, and the water content of the sand can be obtained fast.
Description
Technical field
The present invention relates to the realm of building construction, refer in particular to a kind of construct with in sand moisture content measuring method and
Measurement system.
Background technology
Sand in construction material the most generally carries out the mensuration of moisture content, and the mode of measurement is usual
It is that sand and the container of weighing are put into and dried in baking oven to horizontal heavy, the most again weighs the sand after drying
Son and container, after record weighs numerical value, calculate the moisture content of sand by mathematical formulae.Such
It is generally required to dry 4 to 5 hours, there is the defect of time and effort consuming in way.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that moisture content in a kind of construction sand
Measuring method and the system of measurement, solve prior art is dried measure that sand moisture content exists time-consuming
Laborious problem.
The technical scheme realizing above-mentioned purpose is:
The invention provides a kind of construction and use the measuring method of moisture content in sand, including:
The measurement container of set volume is provided；
In described measurement container, add the sand of setting weight and weigh described measurement container now
Quality m is formed with the gross mass of the sand added1；
In described measurement container, inserting water until filling it up with, weighing described measurement container now, sand
And the gross mass inserting water forms quality m2；
According to formula one mjw=m2-m1Calculate the form of quality quality m inserting waterjw；And
The moisture content of sand, described moisture content computing formula is calculated according to moisture content computing formula
For:
In described moisture content computing formula: ω is the moisture content of sand, ρsFor the density of sand,
VSetFor set volume.
The present invention has only to twice weighing can calculate the moisture content of sand, it is achieved method is simple, joint
Save the measurement time, also save the energy and expense, improve measurement efficiency, provide relatively for job site
Big benefit.Compared to the method dried, the present invention shortens the time needed for measurement, energy greatly
Enough it is quickly obtained the moisture content of sand.
In construction sand of the present invention, the measuring method of moisture content further improvement is that, to described survey
Before adding the sand of setting weight in amount container, also include the form of quality weighing described measurement container
Quality m0；
Described moisture content computing formula is derived from by equation below group, and described formula group is:
mss=m1-m0
mss=ms+mw
VSet=ms/ρs+mw/ρw+mjw/ρw
ω=mw/ms
In described formula group, mssBe sand and its contained water quality and, msIt is the quality of sand,
mwIt is the quality of the water contained in sand, ρwIt is the density of water.
Further improvement is that of the measuring method of moisture content in construction sand of the present invention, described measurement is held
Utensil has cover plate, described measurement container and described cover plate to be glass material.
Further improvement is that of the measuring method of moisture content in construction sand of the present invention, uses during weighing
Electronic scale weighs.
Present invention also offers a kind of construction and use the measurement system of moisture content in sand, including:
Measure container, there is set volume, for holding the sand that need to measure moisture content；
The quality weighing unit being connected with described measurement container, is used for weighing described measurement container and described
The gross mass of material is held in measuring container；
Back-up sand unit, controls to be connected with described quality weighing unit, and described back-up sand unit is for described
Measure add in container setting weight sand and to described quality weighing unit send weighing signal with
Described quality weighing unit is made to weigh described measurement container now and total matter of added sand
Measure mass m1；
Fill out water unit, with described quality weighing unit control be connected, described in fill out water unit for described
Water is inserted until filling up described measurement container and sending title to described quality weighing unit in measuring container
Amount signal is so that described quality weighing unit weighs described measurement volume, sand now and inserts
The gross mass of water obtains mass m2；And
Control unit, with described quality weighing unit, described back-up sand unit and described in fill out water unit control
System connects, and described control unit first sends back-up sand instruction to described back-up sand unit and controls described back-up sand unit
In described measurement container add sand, then to described fill out water unit send fill out water instruction control described in fill out
Water unit inserts water in described measurement container, and described control unit receives described quality weighing unit and obtains
Described quality m gone out1With described quality m2, and calculate according to formula one and moisture content computing formula
The moisture content of sand；
Described formula one is:
mjw=m2-m1
Described moisture content computing formula is:
In described formula one and described moisture content computing formula, ω is the moisture content of sand, ρsFor sand
The density of son, VSetFor set volume, mjwIt it is the quality inserting water.
Further improvement is that of the measurement system of moisture content in construction sand of the present invention, also includes and institute
State control unit connect memory element, described memory cell contain described sand density value and
The volumetric values of described set volume.
Further improvement is that of the measurement system of moisture content in construction sand of the present invention, described measurement is held
Utensil has cover plate, described measurement container and described cover plate to be glass material.
Further improvement is that of the measurement system of moisture content in construction sand of the present invention, described quality claims
Amount unit is electronic scale.
Accompanying drawing explanation
Fig. 1 is the system diagram of the measurement system of moisture content in construction sand of the present invention.
Fig. 2 is the flow chart of the measuring method of moisture content in construction sand of the present invention.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
The invention provides a kind of construction and use measuring method and the measurement system of moisture content in sand, for fast
Speed measures the moisture content of the sand in construction, solves conventionally employed furnace drying method and measures sand existence
The defect of time and effort consuming.The present invention only can draw the moisture content of sand by twice weighing, measures
Method is quick, significantly improves measurement efficiency, and the realization of measuring method and system is simple, has
Energy-conservation effect, has the most greatly saved expense.Contain in construction sand of the present invention below in conjunction with the accompanying drawings
Measuring method and the measurement system of water rate illustrate.
Refering to Fig. 1, it is shown that the present invention constructs with the system diagram of the measurement system of moisture content in sand.Under
Face combines Fig. 1, illustrates the measurement system of moisture content in construction sand of the present invention.
As it is shown in figure 1, in construction sand of the present invention the measurement system of moisture content include measure container 11,
Quality weighing unit 12, back-up sand unit 13, to fill out water unit 14, control unit 15 and storage single
Unit 16, measures container 11 and is connected with quality weighing unit 12, quality weighing unit 12 and back-up sand list
Unit 13 and fill out water unit 14 and connect, control unit 15 and quality weighing unit 12, back-up sand unit 13,
Fill out water unit 14 and memory element 16 controls to connect.
Measurement container 11 therein is used for holding the sand that need to measure moisture content, this measurement container 11
Having set volume, the volumetric values of this set volume can select as required.
Quality weighing unit 12 measures the quality of container 11 for weighing, and is also used for weighing and measures container
11 and this measurement container 11 in hold the gross mass of material.Quality weighing unit 12 is according to being received
To instruction carry out weighing operation, and be sent to control unit 15 by weighing the quality that drawn.
Back-up sand unit 13 controls to be connected with quality weighing unit 12, and this back-up sand unit 13 is for survey
Add the sand of setting weight in amount container 11 and send weighing signal with control to quality weighing unit 12
Quality weighing unit 12 processed works, and weighs and now measures container 11 and total matter of the sand having been added to
Measure and obtain mass m1.The control that back-up sand unit 13 sends according to the control unit 15 received refers to
Order carries out back-up sand operation, and back-up sand sends weighing signal to quality weighing unit 12 after completing.Quality claims
Quality m that amount unit 12 draws1Control unit 15 can be sent to.
Filling out water unit 14 to control to be connected with quality weighing unit 12, this fills out water unit 14 for survey
Insert water until filling up this measurement container 11 in amount container 11, and send to quality weighing unit 12
Weigh signal and work to control quality weighing unit 12, weigh and now measure container 11, sand and fill out
Enter the gross mass of water, obtain mass m2.This fills out water unit 14 according to the control unit 15 received
The control instruction sent carries out filling out water operation, fills out and sends weighing signal after water completes to quality weighing unit
12.Quality m that quality weighing unit 12 draws2Control unit 15 can be sent to.Measuring container
The top of 11 is provided with sensor, when measurement container is filled up by the water filling out water unit 14, by passing
Sensor monitors water, and completely and control is filled out water unit 14 and is stopped inserting operation.
Control unit 15 is used for sending control instruction, after the measurement system of the present invention opens operation,
Control unit 15 first sends back-up sand instruction to back-up sand unit 13 and controls back-up sand unit 13 to measuring container
Add sands in 11, then send and fill out water instruction control to filling out water unit 14 and fill out water unit 14 to measurement
Water is inserted, it is ensured that have been added in needing to measure in filling out water operation protecgulum and measuring container 11 in container
Sand.Control unit 15 have received quality weighing unit 12 and weighs quality m drawn1And quality
m2, and the moisture content of sand is calculated according to formula one and moisture content computing formula；
Formula one is:
mjw=m2-m1
Moisture content computing formula is:
In formula one and moisture content computing formula, ω is the moisture content of sand, ρsFor the density of sand,
VSetFor set volume, mjwIt it is the quality inserting water.
Sand density and set volume in above-mentioned formula are it is known that pass through the measurement of two inferior qualities
The quality inserting water can be calculated, thus can calculate the moisture content of sand, use above-mentioned meter
Calculation method is the most effective, it is possible to shorten the time needed for measuring greatly.And the measurement system of the present invention
Without manual operation, it is only necessary to the sand of moisture content to be measured is filled in back-up sand unit.This
The test system of invention realizes simple, it is possible to save expense, improves efficiency.
In memory element 16, storage has the density value of sand and the volumetric values of set volume, for control
Unit 15 processed is read out when calculating moisture content using.
The sand moisture content Computing Principle of the test system of the present invention is:
Weigh the gross mass formation m measuring container 110；Then moisture content is derived according to formula group
Computing formula, this formula group is:
mss=m1-m0
mss=ms+mw
VSet=ms/ρs+mw/ρw+mjw/ρw
ω=mw/ms
In above-mentioned formula group, mssBe sand and its contained water quality and, msIt is the quality of sand,
mwIt is the quality of the water contained in sand, ρwIt is the density of water.The moisture content derived is calculated public affairs
In formula write control unit 15, to make control unit 15 can directly use this moisture content computing formula
Carry out the calculating of moisture content.Moisture content computing formula only needs measure quality m1With quality m2
The moisture content of sand can be calculated, measure simple and quick convenience.
Measurement container 11 in the measurement system of the present invention has cover plate, this measurement container 11 and cover plate
It is glass material, when quality weighing unit 12 weighs, needs to add a cover cover plate and carry out together
Weigh and calculate.Quality weighing unit 12 can use electronic scale.
Below the measuring method of moisture content in construction sand of the present invention is illustrated.
As in figure 2 it is shown, the measuring method of moisture content includes in construction sand of the present invention:
Perform step S21, it is provided that the measurement container of set volume；The set volume measuring container is permissible
Selecting as required, the value of such as this set volume can be 2000ml.Then step is performed
S22。
Perform step S22, in measuring container, add sand and weigh quality m now1；To this
Add the sand of setting weight in measuring container, such as can add the sand of about 500g, add
After sand, weigh gross mass formation quality m of measurement container now and the sand added1.Connect
Execution step S23.
Perform step S23, topped up with water weighing quality m now in measuring container2；To measurement
Inserting water in container until filling it up with, weighing measurement container, sand now after filling in water and inserting water
Gross mass formed quality m2.Then step S24 is performed.
Perform step S24, calculate quality m inserting waterjw；According to formula one mjw=m2-m1
Calculate the form of quality quality m inserting waterjw；Quality m in formula one2Recorded by step S23,
Quality m1Recorded by step S22.Then step S25 is performed.
Perform step S25, calculate the moisture content of sand according to moisture content computing formula；Moisture content meter
Calculation formula is:
In above-mentioned moisture content computing formula: ω is the moisture content of sand, ρsFor the density of sand,
VSetFor set volume.Quality mjwCalculated by step S24, the density of sand and set volume
Value be known.The present invention has only to twice weighing can calculate the moisture content of sand, it is achieved side
Method is simple, saves the measurement time, also saves the energy and expense, improves measurement efficiency, existing for construction
Field provides bigger benefit.Compared to the method dried, it is required that the present invention shortens measurement greatly
Time, it is possible to be quickly obtained the moisture content of sand.
Moisture content computing formula is derived from by formula below group, needs first to weigh survey when deriving
The form of quality quality m of amount container0；
This formula group is:
mss=m1-m0
mss=ms+mw
VSet=ms/ρs+mw/ρw+mjw/ρw
ω=mw/ms
In above-mentioned formula group, mssBe sand and its contained water quality and, msIt is the quality of sand,
mwIt is the quality of the water contained in sand, ρwIt is the density of water.
Measuring container and have cover plate, this measurement container and cover plate are glass material, are claiming every time
During amount, be required to add build cover plate after weigh again.Weighing can use electronic scale to carry out.
With an instantiation, the present invention measures the method for sand moisture content below to illustrate.
First, it is provided that volume is the vial of 2000ml, this vial is furnished with glass cover-plate, it is provided that
Electronic scale is used for weighing；
Electronic scale is utilized to weigh quality m of vial and glass cover-plate0；
In vial, add the sand of about 500g, build with glass cover-plate, utilize electronic scale to claim
Amount vial, sand and gross mass m of glass cover-plate1, so utilize quality m1With quality m0
Sand and its aqueous quality can be calculated and form quality mss, formula is mss=m1-m0；
In vial, injecting water, until filling it up with, building with glass cover-plate, utilize electronic scale to weigh glass
Gross mass m of glass bottle, sand, water and glass cover-plate2, so utilize quality m1With quality m2
Quality m injecting water can be calculatedjw, formula is mjw=m2-m1；
The quality setting sand is quality ms, quality aqueous in sand is quality mw, so matter
Amount mssMeet formula mss=ms+mw；Vial has been filled full by sand and water, in sand self
Possibly together with water, the volume so meeting sand and water is equal with vial volume, and formula is；ms/ρ s+mw/ρw+mjw/ρw=2000；ρsIt is the density of sand, ρwIt is the density of water.The most permissible
Calculate quality msWith quality mwValue.
Sand moisture content ω, ω=mw/ms, according to above-mentioned quality m drawnsWith quality mwValue
Just can calculate sand moisture content.Moisture content computing formula can be derived in combination with above-mentioned formula:
The calculating of other sand moisture content can be carried out afterwards, thus further according to moisture content computing formula
Need to weigh the moisture content that can calculate sand twice.Utilize this measuring method quickly effective, greatly
Save measurement time and measurement expense, improved and measure efficiency.
Above in association with accompanying drawing embodiment, the present invention is described in detail, ordinary skill people in this area
The present invention can be made many variations example by member according to the above description.Thus, some details in embodiment
Should not constitute limitation of the invention, the present invention by the scope that defines using appended claims as this
The protection domain of invention.
Claims (8)
1. construct by the measuring method of moisture content in sand for one kind, it is characterised in that including:
The measurement container of set volume is provided；
In described measurement container, add the sand of setting weight and weigh described measurement container now
Quality m is formed with the gross mass of the sand added1；
In described measurement container, inserting water until filling it up with, weighing described measurement container now, sand
And the gross mass inserting water forms quality m2；
According to formula one mjw=m2-m1Calculate the form of quality quality m inserting waterjw；And
The moisture content of sand, described moisture content computing formula is calculated according to moisture content computing formula
For:
In described moisture content computing formula: ω is the moisture content of sand, ρsFor the density of sand, VSet
For set volume.
2. the measuring method of moisture content in construction sand as claimed in claim 1, it is characterised in that
Before adding the sand of setting weight in described measurement container, also include weighing described measurement container
The form of quality quality m0；
Described moisture content computing formula is derived from by equation below group, and described formula group is:
mss=m1-m0
mss=ms+mw
VSet=ms/ρs+mw/ρw+mjw/ρw
ω=mw/ms
In described formula group, mssBe sand and its contained water quality and, msIt is the quality of sand,
mwIt is the quality of the water contained in sand, ρwIt is the density of water.
3. the measuring method of moisture content, its feature in construction sand as claimed in claim 1 or 2
Being, described measurement container has cover plate, and described measurement container and described cover plate are glass material.
4. the measuring method of moisture content, its feature in construction sand as claimed in claim 1 or 2
It is, during weighing, uses electronic scale to weigh.
5. construct by the measurement system of moisture content in sand for one kind, it is characterised in that including:
Measure container, there is set volume, for holding the sand that need to measure moisture content；
The quality weighing unit being connected with described measurement container, is used for weighing described measurement container and described
The gross mass of material is held in measuring container；
Back-up sand unit, controls to be connected with described quality weighing unit, and described back-up sand unit is for described
Measure add in container setting weight sand and to described quality weighing unit send weighing signal with
Described quality weighing unit is made to weigh described measurement container now and total matter of added sand
Measure mass m1；
Fill out water unit, with described quality weighing unit control be connected, described in fill out water unit for described
Water is inserted until filling up described measurement container and sending title to described quality weighing unit in measuring container
Amount signal is so that described quality weighing unit weighs described measurement volume, sand now and inserts
The gross mass of water obtains mass m2；And
Control unit, with described quality weighing unit, described back-up sand unit and described in fill out water unit control
System connects, and described control unit first sends back-up sand instruction to described back-up sand unit and controls described back-up sand unit
In described measurement container add sand, then to described fill out water unit send fill out water instruction control described in fill out
Water unit inserts water in described measurement container, and described control unit receives described quality weighing unit and obtains
Described quality m gone out1With described quality m2, and calculate according to formula one and moisture content computing formula
The moisture content of sand；
Described formula one is:
mjw=m2-m1
Described moisture content computing formula is:
In described formula one and described moisture content computing formula, ω is the moisture content of sand, ρsFor sand
The density of son, VSetFor set volume, mjwIt it is the quality inserting water.
6. the measurement system of moisture content in construction sand as claimed in claim 5, it is characterised in that
Also including the memory element being connected with described control unit, described memory cell contains described sand
Density value and the volumetric values of described set volume.
7. the measurement system of moisture content, its feature in the construction sand as described in claim 5 or 6
Being, described measurement container has cover plate, and described measurement container and described cover plate are glass material.
8. the measurement system of moisture content, its feature in the construction sand as described in claim 5 or 6
Being, described quality weighing unit is electronic scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214681.0A CN105891039A (en) | 2016-04-08 | 2016-04-08 | Measuring method and system for water content in construction sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214681.0A CN105891039A (en) | 2016-04-08 | 2016-04-08 | Measuring method and system for water content in construction sand |
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| Publication Number | Publication Date |
|---|---|
| CN105891039A true CN105891039A (en) | 2016-08-24 |
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ID=57012837
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610214681.0A Pending CN105891039A (en) | 2016-04-08 | 2016-04-08 | Measuring method and system for water content in construction sand |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631988A (en) * | 2019-10-08 | 2019-12-31 | 苏州方正工程技术开发检测有限公司 | Method for measuring volume of large-grain-level compact inorganic binder compacted test piece |
| CN111220500A (en) * | 2020-01-07 | 2020-06-02 | 中国船舶重工集团公司第七二五研究所 | Method for simultaneously testing true density, bulk density and maximum packing ratio of millimeter-scale small balls |
| CN115032108A (en) * | 2022-08-04 | 2022-09-09 | 徐州徐工基础工程机械有限公司 | Mud sand content detection device and method and engineering machinery |
-
2016
- 2016-04-08 CN CN201610214681.0A patent/CN105891039A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631988A (en) * | 2019-10-08 | 2019-12-31 | 苏州方正工程技术开发检测有限公司 | Method for measuring volume of large-grain-level compact inorganic binder compacted test piece |
| CN111220500A (en) * | 2020-01-07 | 2020-06-02 | 中国船舶重工集团公司第七二五研究所 | Method for simultaneously testing true density, bulk density and maximum packing ratio of millimeter-scale small balls |
| CN115032108A (en) * | 2022-08-04 | 2022-09-09 | 徐州徐工基础工程机械有限公司 | Mud sand content detection device and method and engineering machinery |
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Application publication date: 20160824 |