CN106568653A - Method used for rapid measuring of furniture factory mortar cube compressive strength - Google Patents
Method used for rapid measuring of furniture factory mortar cube compressive strength Download PDFInfo
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- CN106568653A CN106568653A CN201611005853.XA CN201611005853A CN106568653A CN 106568653 A CN106568653 A CN 106568653A CN 201611005853 A CN201611005853 A CN 201611005853A CN 106568653 A CN106568653 A CN 106568653A
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- test specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- 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)
Abstract
The invention discloses a method used for rapid measuring of furniture factory mortar cube compressive strength. According to the method, a test die is prepared from cast iron or steel; a tamping rod is a steel rod, a pressure testing machine, and a backing plate are adopted; in preparation of masonry mortar testing pieces, a bottomless test die is placed on common clay bricks, wherein the inner wall of the bottomless test die is coated with a thin layer of machine oil or a release agent; the bottomless test die is filled with mortar via injection in one time; when pocking marks are formed on the surface of the mortar, the mortar higher than the bottomless test die is removed along the top surface of the bottomless test die; a test piece is placed on a pushing plate of a testing machine; the testing machine is turned on, a ball seat is adjusted so as to realize balance pressure on a contact surface, continuous and uniform pressure loading is carried out in pressure-bearing test, pressure loading speed is controlled to be 0.5 to 1.5kN per minute, and when the test piece deforms rapidly because of close to destroy, adjusting of a testing machine accelerator is stopped until the test piece is destroyed, and destroy load is recorded; and at last the mortar cube compressive strength is calculated. The method is simple in operation process, can be used for testing cube compressive strength accurately, and is capable of providing subsequent operation with convenience and ensuring construction quality.
Description
Technical field
The present invention relates to a kind of method, is quickly carried out more particularly, to a kind of to furniture Factory Building mortar cubic compressive strength
The method of test.
Background technology
Building is the general name of building and structures, be people in order to meet social life needs, utilize grasped thing
Matter technological means, and the artificial environment created with certain scientific law, edema due to wind pathogen theory and aesthetic principle.The object of building is big
Correlation to constructing including the comprehensive Environment Design of regional planning, urban planning, landscape design etc., before community is formed was built
Journey, the little making to indoor furniture, small articles etc..And its common object is the unit in certain place.
In the category of architectonics and civil engineering, " building " refers to the process of construction building or development capital construction.Typically
For, each construction project can be responsible for pool by DBG and architect, by contractor at different levels, divide and sentence business, engineering Gu
Ask, Quantity Surveyor, the professional such as structural engineer are responsible for supervision.
Each construction project is successfully completed, effectively plan is required, no matter is designed so that completing whole building
Project is required for fully taking into account environmental impact, foundation building schedule table, finance that whole building project may be brought
On arrangement, building safety, the delay in the transport of construction material and utilization, engineering, prepare tender documents etc..
During the nearly last ten years, China's building trade high speed development, the building trade gross output value rises to from the 1536200000000 of calendar year 2001
13,530,300,000,000 yuan in 2012, nearly 9 times of amount of increase, and the high speed development of building trade has also driven the development of related industry, greatly
Width improves the overall national strength of China and the living standard of the people, builds well-off society for the whole nation and provides wide space.Entirely
Ball construction market is worth about 7.5 trillion dollars, accounts for the 13.4% of global GDP.The year two thousand twenty is expected, its value is up to 12.7 ten thousand
Hundred million dollars, 70% will be increased in ensuing ten years.To the year two thousand twenty, building industry will account for the 14.6% of global GDP.Coming 10 years,
The building industry scale of global emerging market will be enlarged by 1 times, reach 6.7 trillion dollars.The Chinese developing country as maximum,
The construction market scale of 2013 was up to 12 trillion yuans to 2015 by 2015 by close 10,000,000,000,000 yuans, the whole world
Megalopolis of 23 populations more than 10,000,000 is will appear from, this will greatly promote building industry to globalize, and for traditional construction business
Between strategic integration provide chance.In the long run, future 50 years, Chinese city rate will increase to more than 76%, city
More than 95% is up to the contribution rate of whole national economy.The development indication of Mode of Metropolitan, group of cities, urban belt and key city
The high speed of Urbanization Process In China is taken off, also predictive of the broader market of building industry at hand.Consulting data is ground according to intelligence
Incomplete statistics, 2013 to the year two thousand twenty, Chinese architectural trade will increase by 130%.Wherein, China in 2018 will become more than the U.S.
Global maximum construction market, accounts for the 19.1% of the global construction gross output value.Intelligent building wide market, in the year two thousand twenty
Before, China is at least 1.5 trillion for the investment of energy saving building project.China's building energy conservation blueprint contain to energy-saving material and
The business opportunity of technology many trillion unit.Mortar is architectural conventional material, and the cubic compressive strength of mortar is weigh mortar one
Individual important indicator, it is existing big for the assay method error of mortar cubic compressive strength so that mortar use it is architectural after
There are serious quality problems, finally do not reach standard when building is checked and accepted, cause to do over again, affect the duration.
The content of the invention
It is an object of the invention to overcome above-mentioned existing big for the assay method error of mortar cubic compressive strength, make
Mortar use it is architectural after there are serious quality problems, finally building check and accept when do not reach standard, cause to do over again, shadow
The problem of duration is rung, a kind of method quickly tested furniture Factory Building mortar cubic compressive strength, the method is devised
Operating process it is easy, can exactly test out cubic compressive strength, facilitate subsequent operation, it is ensured that construction quality, solve
It is existing big for the assay method error of mortar cubic compressive strength so that mortar use it is architectural after exist it is serious
Quality problems, finally do not reach standard when building is checked and accepted, and cause to do over again, and affect the problem of duration.
The purpose of the present invention is achieved through the following technical solutions：Quickly furniture Factory Building mortar cubic compressive strength is carried out
The method of test, comprises the following steps：
(1) die trial is the cube of 70.7mm × 70.7mm × 70.7mm, is made up of cast iron or steel, and the inner surface of die trial should
Machining, its unevenness should be every 100mm less than 0.05mm, after assembling the non-perpendicularity of each adjacent surface be not to be exceeded ±
0.5°；A diameter of 10mm of tamper, the rod iron of long 350mm, rounding is answered in end；Pressure testing machine is not more than ± 2% using precision
Testing machine, its range should be able to make the expected failing load value of test specimen not less than the 20% of gamut, also no more than gamut
80%；Can pad between the upper and lower pressing plate of testing machine and test specimen with billet, the size of backing plate should be greater than the pressure-bearing surface of test specimen, its
Unevenness should be every 100mm less than 0.02mm；
(2) when making masonry mortar test specimen, bottomless die trial is placed on the unselected clay for being covered with the preferable paper of water absorption in advance
On brick, the prior brushing thin layer machine oil of die trial inwall or releasing agent；
(3) l Water Paper being put on brick, should be wet newsprint, and the size of paper will be defined by four sides that can build brick, brick
Required using face smooth, four verticals of all bricks were glued after cement or other cementing materials, did not allowed to reuse；
(4) mortar is once filled into die trial, is uniformly plugged and pounded 25 times by the hand of spiral from outside to inside with tamper, in order to prevent
After low denseness mortar is plugged and pounded, hole may be left, it is allowed to putty knife along die wall insert for several times, make mortar be higher by die trial top surface 6～
8mm；
(5) mortar of the raised area pruned along die trial top surface when mortar surface starts to occur numb plaque-like state floating；
(6) test specimen make after should under 20 ± 5 DEG C of temperature environments parked diel, when temperature is relatively low, can proper extension
Time, but be not to be exceeded two round the clock, then test specimen is numbered and form removal, after test specimen form removal, should under the conditions of standard curing,
Continue to conserve to 28d, then carry out pressure testing；
(7) after test specimen takes out from maintenance place, should be tested as early as possible, in case the humiture inside test specimen occurs significantly to become
Change, first by test specimen wiped clean before test, measurement size, and check its outward appearance, sample dimensions measurement is accurate to 1mm, and accordingly
The bearing area of calculation testing piece；
(8) test specimen is placed on the lower platen up or down backing plate of testing machine, the pressure-bearing surface of test specimen should be with top during molding
Face is vertical, and test specimen center should be aligned with testing machine lower platen (or lower bolster) center, testing machine be started, when top board and test specimen
When (or upper padding plate) is close, ball seat is adjusted, make contact surface equilibrium pressurized, continuously and equably loading, loading speed are answered in pressure-bearing test
Degree should be 0.5～1.5kN each second and (when mortar strength 5MPa and below 5MPa, remove the limit and be advisable, be more than mortar strength 5MPa
When, capping is advisable), when test specimen is close to destruction and starts rapid deformation, stop Adjustment Tests machine oil door, until test specimen is broken
It is bad, then record failing load；
(9) mortar cubic compressive strength should be calculated by following equation：
Fm in formula, cu --- mortar cubic compressive strength (MPa)；
Nu --- cube breakdown pressure (N)；
A --- test specimen bearing area (mm2)；
Using the arithmetic mean of instantaneous value of six test specimen measured values as the compression strength value of this group of test specimen, mean value calculation is accurate to
0.1MPa, when the maximum or minima of six test specimens and the difference of meansigma methodss are more than 20%, with the average of middle four test specimens
It is worth the compression strength value as this group of test specimen.
In sum, the invention has the beneficial effects as follows：The operating process of the method is easy, can test out exactly cube
Body comprcssive strength, facilitates subsequent operation, it is ensured that construction quality, solves existing for the measure side of mortar cubic compressive strength
Method error is big so that mortar use it is architectural after there are serious quality problems, finally building check and accept when do not reach standard,
Cause to do over again, affect the problem of duration.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to
This.
Embodiment：
The quick method tested furniture Factory Building mortar cubic compressive strength, comprises the following steps：
(1) die trial is the cube of 70.7mm × 70.7mm × 70.7mm, is made up of cast iron or steel, and the inner surface of die trial should
Machining, its unevenness should be every 100mm less than 0.05mm, after assembling the non-perpendicularity of each adjacent surface be not to be exceeded ±
0.5°；A diameter of 10mm of tamper, the rod iron of long 350mm, rounding is answered in end；Pressure testing machine is not more than ± 2% using precision
Testing machine, its range should be able to make the expected failing load value of test specimen not less than the 20% of gamut, also no more than gamut
80%；Can pad between the upper and lower pressing plate of testing machine and test specimen with billet, the size of backing plate should be greater than the pressure-bearing surface of test specimen, its
Unevenness should be every 100mm less than 0.02mm；
(2) when making masonry mortar test specimen, bottomless die trial is placed on the unselected clay for being covered with the preferable paper of water absorption in advance
On brick, the prior brushing thin layer machine oil of die trial inwall or releasing agent；
(3) l Water Paper being put on brick, should be wet newsprint, and the size of paper will be defined by four sides that can build brick, brick
Required using face smooth, four verticals of all bricks were glued after cement or other cementing materials, did not allowed to reuse；
(4) mortar is once filled into die trial, is uniformly plugged and pounded 25 times by the hand of spiral from outside to inside with tamper, in order to prevent
After low denseness mortar is plugged and pounded, hole may be left, it is allowed to putty knife along die wall insert for several times, make mortar be higher by die trial top surface 6～
8mm；
(5) mortar of the raised area pruned along die trial top surface when mortar surface starts to occur numb plaque-like state floating；
(6) test specimen make after should under 20 ± 5 DEG C of temperature environments parked diel, when temperature is relatively low, can proper extension
Time, but be not to be exceeded two round the clock, then test specimen is numbered and form removal, after test specimen form removal, should under the conditions of standard curing,
Continue to conserve to 28d, then carry out pressure testing；
(7) after test specimen takes out from maintenance place, should be tested as early as possible, in case the humiture inside test specimen occurs significantly to become
Change, first by test specimen wiped clean before test, measurement size, and check its outward appearance, sample dimensions measurement is accurate to 1mm, and accordingly
The bearing area of calculation testing piece；
(8) test specimen is placed on the lower platen up or down backing plate of testing machine, the pressure-bearing surface of test specimen should be with top during molding
Face is vertical, and test specimen center should be aligned with testing machine lower platen (or lower bolster) center, testing machine be started, when top board and test specimen
When (or upper padding plate) is close, ball seat is adjusted, make contact surface equilibrium pressurized, continuously and equably loading, loading speed are answered in pressure-bearing test
Degree should be 0.5～1.5kN each second and (when mortar strength 5MPa and below 5MPa, remove the limit and be advisable, be more than mortar strength 5MPa
When, capping is advisable), when test specimen is close to destruction and starts rapid deformation, stop Adjustment Tests machine oil door, until test specimen is broken
It is bad, then record failing load；
(9) mortar cubic compressive strength should be calculated by following equation：
Fm in formula, cu --- mortar cubic compressive strength (MPa)；
Nu --- cube breakdown pressure (N)；
A --- test specimen bearing area (mm2)；
Using the arithmetic mean of instantaneous value of six test specimen measured values as the compression strength value of this group of test specimen, mean value calculation is accurate to
0.1MPa, when the maximum or minima of six test specimens and the difference of meansigma methodss are more than 20%, with the average of middle four test specimens
It is worth the compression strength value as this group of test specimen.
The operating process of the method is easy, can exactly test out cubic compressive strength, facilitates subsequent operation, it is ensured that
Construction quality, solves existing big for the assay method error of mortar cubic compressive strength so that mortar uses building
There are serious quality problems after upper, finally do not reach standard when building is checked and accepted, cause to do over again, affect the problem of duration.
The above, is only presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention, it is every according to
According to any simple modification, equivalent variations that technology, the method for the present invention are substantially made to above example, the present invention is each fallen within
Protection domain within.
Claims (1)
1. the method quickly furniture Factory Building mortar cubic compressive strength tested, it is characterised in that comprise the following steps：
(1) die trial is the cube of 70.7mm × 70.7mm × 70.7mm, is made up of cast iron or steel, and the inner surface of die trial should machinery
Processing, its unevenness should be every 100mm less than 0.05mm, and the non-perpendicularity of each adjacent surface is not to be exceeded ± 0.5 ° after assembling；
A diameter of 10mm of tamper, the rod iron of long 350mm, rounding is answered in end；Pressure testing machine is not more than ± 2% test using precision
Machine, its range should be able to make the expected failing load value of test specimen not less than the 20% of gamut, also no more than the 80% of gamut；
Can pad between the upper and lower pressing plate of testing machine and test specimen with billet, the size of backing plate should be greater than the pressure-bearing surface of test specimen, its unevenness should
It is that every 100mm is less than 0.02mm；
(2) when making masonry mortar test specimen, bottomless die trial is placed on and is covered with advance on the common brick of the preferable paper of water absorption,
The prior brushing thin layer machine oil of die trial inwall or releasing agent；
(3) l Water Paper being put on brick, should be wet newsprint, and the size of paper will be defined by four sides that can build brick, the use of brick
Face requirement is smooth, and four verticals of all bricks were glued after cement or other cementing materials, did not allowed to reuse；
(4) mortar is once filled into die trial, is uniformly plugged and pounded 25 times by the hand of spiral from outside to inside with tamper, it is low thick in order to prevent
After degree mortar is plugged and pounded, hole may be left, it is allowed to inserted for several times along die wall with putty knife, make mortar be higher by die trial 6～8mm of top surface；
(5) mortar of the raised area pruned along die trial top surface when mortar surface starts to occur numb plaque-like state floating；
(6) test specimen make after should under 20 ± 5 DEG C of temperature environments parked diel, when temperature is relatively low, can the proper extension time,
But it is not to be exceeded two round the clock, then test specimen is numbered and form removal, after test specimen form removal, should continues under the conditions of standard curing
Conserve to 28d, then carry out pressure testing；
(7) after test specimen takes out from maintenance place, should be tested as early as possible, in case there are significant changes in the humiture inside test specimen,
First by test specimen wiped clean before test, size is measured, and check its outward appearance, sample dimensions measurement is accurate to 1mm, and calculates accordingly
The bearing area of test specimen；
(8) test specimen is placed on the lower platen up or down backing plate of testing machine, the pressure-bearing surface of test specimen should hang down with top surface during molding
Directly, test specimen center should be aligned with testing machine lower platen (or lower bolster) center, start testing machine, when top board and test specimen (or on
Backing plate) it is close when, adjust ball seat, make contact surface equilibrium pressurized, continuously and equably loading is answered in pressure-bearing test, and loading speed should be
0.5～1.5kN (when mortar strength 5MPa and below 5MPa, was removed the limit and was advisable, when more than mortar strength 5MPa, take each second
It is limited to preferably), when test specimen is close to destruction and starts rapid deformation, stop Adjustment Tests machine oil door, until test specimen destruction, Ran Houji
Record failing load；
(9) mortar cubic compressive strength should be calculated by following equation：
Fm in formula, cu --- mortar cubic compressive strength (MPa)；
Nu --- cube breakdown pressure (N)；
A --- test specimen bearing area (mm2)；
Using the arithmetic mean of instantaneous value of six test specimen measured values as the compression strength value of this group of test specimen, mean value calculation is accurate to
0.1MPa, when the maximum or minima of six test specimens and the difference of meansigma methodss are more than 20%, with the average of middle four test specimens
It is worth the compression strength value as this group of test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005853.XA CN106568653A (en) | 2016-11-11 | 2016-11-11 | Method used for rapid measuring of furniture factory mortar cube compressive strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005853.XA CN106568653A (en) | 2016-11-11 | 2016-11-11 | Method used for rapid measuring of furniture factory mortar cube compressive strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106568653A true CN106568653A (en) | 2017-04-19 |
Family
ID=58542328
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611005853.XA Withdrawn CN106568653A (en) | 2016-11-11 | 2016-11-11 | Method used for rapid measuring of furniture factory mortar cube compressive strength |
Country Status (1)
| Country | Link |
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| CN (1) | CN106568653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665940A (en) * | 2020-12-31 | 2021-04-16 | 云南西又贝新材料科技有限公司 | Mortar strength measuring method and measuring instrument of accelerator |
-
2016
- 2016-11-11 CN CN201611005853.XA patent/CN106568653A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665940A (en) * | 2020-12-31 | 2021-04-16 | 云南西又贝新材料科技有限公司 | Mortar strength measuring method and measuring instrument of accelerator |
| CN112665940B (en) * | 2020-12-31 | 2023-05-26 | 云南西又贝新材料科技有限公司 | Mortar strength measuring method and instrument by mixing accelerator |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170419 |