CN105819772A - Grid bank concrete mechanical performance test method - Google Patents
Grid bank concrete mechanical performance test method Download PDFInfo
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- CN105819772A CN105819772A CN201610126840.1A CN201610126840A CN105819772A CN 105819772 A CN105819772 A CN 105819772A CN 201610126840 A CN201610126840 A CN 201610126840A CN 105819772 A CN105819772 A CN 105819772A
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- concrete
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- coarse aggregate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A grid bank concrete mechanical performance test method comprises the following steps: 1, selecting water, cement, fine aggregates and coarse aggregates as raw materials, and respectively detecting the cement, the fine aggregates and the coarse aggregates; 2, mixing and dosing the raw materials; 3, pouring a uniformly mixed concrete mixture in a stirrer into a die, and testing the apparent density and the slump of the concrete mixture; 4, vibrating and tamping the concrete mixture to make a concrete test block; 5, putting the concrete test block in a standard curing room, and curing the concrete test block; and 6, testing the technologic parameters of the concrete test block. The method has the advantages of convenient and fast test, accurate test data, provision of technologic support for bank protection of river bank slopes, and construction quality ensuring.
Description
Technical field
The invention belongs to concrete revetment technical field, be specifically related to a kind of lattice ridge mechanical performance of concrete test method.
Background technology
Sediment Siltation, riverbed lifting, Lower Reaches of The Yellow River gradually becomes canal on embankment, for safety people's continuous fill Shu Shui.But, current often result in river levee to the scour of bank slope and cave in, and heavy showers frequently results in again bank slope soil erosion to the erosion of bank slope.To this, people have to river levee is taked shore protection measure of hardening, and protect Seawall safety.Traditional concrete revetment engineering, main consideration river course antiscour and bank stability, less consideration eco environment facto.The construction used, one is cast-in-place concrete panel, and two is to pave concrete prefabricated board.The consequence of two kinds of construction methods is to define large-area concrete slab gallery on the soil matrix of two sides, river course.These hard gallery structures, hinder the performance of Riparian Zone biology habitat function, destroy the original ecosystem in river.
Eco-concrete shore protection technology, studies in China is relatively fewer, and its application has two kinds of forms, one is cast-in-place grid ecological revetment technology, and it is formwork supporting plate on Channel slope, the cast in situs armored concrete lattice ridge, side slope is divided into some block grids by the lattice ridge, then plants vegetation in grid and afforests.This form advantage is that yardstick is big, and vegetation survival rate and coverage rate are high, and shortcoming is that site operation needs power supply, water source, it is desirable to place is open and flat open, and the most this form anti-heavy showers scouring capability is poor；Another kind of form is concrete orifice plate or concrete hollow block, is to lay concrete orifice plate or hollow brick on river course bank slope, then afforests at the hole heart or hollow interior plantation vegetation.The advantage of this form is good to place adaptation ability, and shortcoming is that green percentage is low, and anti-heavy showers scouring capability is poor.In order to improve anti-heavy showers scouring capability, plant-growing type eco-concrete can be used.This form is mainly made up of celluar concrete, water-keeping material, slightly soluble fertilizer and topsoil.Topsoil is laid on cellular concrete surface, forms vegetation germination space, provides the nutrient that vegetation germinates the initial stage simultaneously.But this form needs also exist for poured in place concrete, there are power supply, water source in needs scene, it is necessary to appointed condition, and construction quality be not easy ensure.
Summary of the invention
The present invention is to solve weak point of the prior art, it is provided that a kind of low cost, place is adapted to the lattice ridge mechanical performance of concrete test method that ability is good, it is strong to carry out heavy showers scouring capability prefabricated, anti-, can improve construction quality.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that lattice ridge mechanical performance of concrete test method, comprises the following steps:
(1) water, cement, fine aggregate and coarse aggregate, are chosen as raw material；Cement carries out consumptive use of water normal consistence, fineness, initial set and final setting time, volume stability, loss on ignition, strength of cement mortar detect；Fine aggregate carries out bulk density, apparent density, clay content, water absorption rate, clod content and modulus of fineness detect；Coarse aggregate carries out grain composition the most successively, apparent density, bulk density, water absorption rate, clay content, crush values, maximum particle diameter detect；
(2), mix: the coarse aggregate of the water of 180-200kg, the cement of 300-340kg, the fine aggregate of 500-800kg and 1000-1300kg is encased in blender, opens blender and carry out mix and blend operation, until concrete mix mix homogeneously；
(3), uniform for stirrer for mixing concrete mix is poured in the middle of mould, the apparent density of test concrete mix and the slump；
(4), by concrete mix mechanical pudding, it is fabricated to concrete test block；
(5) maintenance work is carried out in, concrete test block is put into laboratory standard fog room；
(6), the technical parameter of test concrete test block, described parameter includes and 7 day age comprcssive strength, 28 day age comprcssive strength, axial compressive strength and elastic modelling quantity.
(7) to testing out above technical specification or parameter is analyzed, in conjunction with the practical situation of construction, the material mixture ratio of further plaid matching ridge concrete is adjusted.
Described fine aggregate is fluvial sand, and coarse aggregate is blinding or building waste.
When coarse aggregate is blinding, the weight of water, cement, fluvial sand and blinding contained in concrete mix is respectively 193kg, 323kg, 744kg and 1215kg.
When coarse aggregate is building waste, the weight of water, cement, fluvial sand and building waste contained in concrete mix is respectively 190kg, 316kg, 597kg and 1065kg.
Using technique scheme, the lattice stalk Concrete Design in the present invention is the environmentally friendly concrete of C20, and the slump 50 ~ 70mm is respectively adopted blinding or construction refuse regenerated aggregate as coarse aggregate；The data produced by test, find that when lattice ridge concrete uses building waste to do coarse aggregate as coarse aggregate than common stone, apparent density is little, bank-protection works is applied building waste aggregate concrete as the frame of eco-concrete part, it is light from the common stone concrete that anharmonic ratio is traditional, under equal conditions, the pressure and the critical downslide frictional force that produce bank soil also can be less.So, use common stone as the sash concrete antiskid good stability of coarse aggregate from point of theory analysis.But from environmental conservation, saving the energy, waste and old resource circulation utilization aspect is said, using construction refuse regenerated aggregate to make the coarse aggregate of lattice stalk concrete, workability disclosure satisfy that engine request, popularization and application are out of question.According to concrete mix mobility, concrete crushing strength and the test result analysis of elastic modelling quantity after hardening, building waste aggregate is to can apply in eco-concrete engineering construction.
Use concrete ecological shore protection, it is simply that bank slope pours plant-growing type eco-concrete in river course, lay Nutrition Soil, plantation turf at concrete surface, form green vegetation.Such shore protection mode, while ensureing river bank slope safety and stablization, bank slope is also used as the tie of Exchange of material and energy between river water and land, maintains river bio-diversity, protects river basin ecological environment.
In sum, convenient test of the present invention is quick, tests accurate data, and for river course bank slope, concrete is carried out shore protection provides technical support, it is ensured that construction quality.
Detailed description of the invention
The lattice ridge mechanical performance of concrete test method of the present invention, comprises the following steps:
(1) water, cement, fine aggregate and coarse aggregate, are chosen as raw material；Fine aggregate is fluvial sand, and coarse aggregate is blinding or building waste；Cement carrying out the index such as consumptive use of water normal consistence, fineness, initial set and final setting time, volume stability, loss on ignition, strength of cement mortar detect, detected value is as shown in table 1--1 table 1-6；
Table 1-1 cement normal consistency water consumption index
Table 1-2 cement fineness index
Table 1-3 cement initial set and final setting time index
Table 1-4 cement volume stability index
Table 1-5 cement loss on ignition index
Table 1-6 normal silicate 42.5 strength of cement index
Fine aggregate carries out the technical performance indexs such as bulk density, apparent density, clay content, water absorption rate, clod content and modulus of fineness detect, as shown in Table 2；
Table 2 fine aggregate technical performance detected value
Coarse aggregate carries out the technical performance indexs such as grain composition, apparent density, bulk density, water absorption rate, clay content, crush values, maximum particle diameter the most successively detect, as shown in Table 3；
Table 3 lattice ridge concrete coarse aggregate technical performance detected value
(2), mix: the coarse aggregate of the water of 180-200kg, the cement of 300-340kg, the fine aggregate of 500-800kg and 1000-1300kg is encased in blender, opens blender and carry out mix and blend operation, until concrete mix mix homogeneously；
(3), uniform for stirrer for mixing concrete mix is poured in the middle of mould, the apparent density of test concrete mix and the slump, as shown in table 4；
Table 4 sash concrete apparent density value and the slump
(4), by concrete mix mechanical pudding, it is fabricated to concrete test block；
(5) maintenance work is carried out in, concrete test block is put into laboratory standard fog room；
(6), the technical parameter of test concrete test block, described parameter includes and 7 day age comprcssive strength, 28 day age comprcssive strength, axial compressive strength and elastic modelling quantity, as shown in table 5；
Table 5 sash mechanical performance of concrete desired value
When coarse aggregate is blinding, the weight of water, cement, fluvial sand and blinding contained in concrete mix is respectively 193kg, 323kg, 744kg and 1215kg.When coarse aggregate is building waste, the weight of water, cement, fluvial sand and building waste contained in concrete mix is respectively 190kg, 316kg, 597kg and 1065kg.As shown in table 6.
Table 6 lattice ridge concrete each material usage match ratio
(7) to testing out above technical specification or parameter is analyzed, in conjunction with the practical situation of construction, the material mixture ratio of further plaid matching ridge concrete is adjusted.
Lattice stalk Concrete Design in the present invention is the environmentally friendly concrete of C20, and the slump 50 ~ 70mm is respectively adopted blinding or construction refuse regenerated aggregate as coarse aggregate；The data produced by test, find that when lattice ridge concrete uses building waste to do coarse aggregate as coarse aggregate than common stone, apparent density is little, bank-protection works is applied building waste aggregate concrete as the frame of eco-concrete part, it is light from the common stone concrete that anharmonic ratio is traditional, under equal conditions, the pressure and the critical downslide frictional force that produce bank soil also can be less.So, use common stone as the sash concrete antiskid good stability of coarse aggregate from point of theory analysis.But from environmental conservation, saving the energy, waste and old resource circulation utilization aspect is said, using construction refuse regenerated aggregate to make the coarse aggregate of lattice stalk concrete, workability disclosure satisfy that engine request, popularization and application are out of question.According to concrete mix mobility, concrete crushing strength and the test result analysis of elastic modelling quantity after hardening, building waste aggregate is to can apply in eco-concrete engineering construction.
Above example shows, it is 26.2MPa that sash concrete uses common stone to make 7 days comprcssive strength during coarse aggregate, 28 days comprcssive strength reaches 37.5MPa, and uses building waste to replace common stone to be 17.2MPa as its 7 days comprcssive strength during coarse aggregate, and within 28 days, comprcssive strength reaches 25.5MPa.Although using the concrete seven sky of building waste aggregate, 28 days comprcssive strength to be respectively less than the corresponding comprcssive strength of common stone concrete, but the comprcssive strength of 7 days and 28 days is compared, building waste aggregate concrete compression strength value accounts for the 65.6% and 68.0% of common stone concrete compression strength value respectively, and 28 days comprcssive strength of building waste aggregate concrete reaches the planned value that target is C20 concrete.Being found out that building waste is little as the lattice ridge modulus of elasticity of concrete of coarse aggregate by upper table measured value, be the 57% of normal concrete elastic mould value, elastic modelling quantity is little, it is meant that adaptive deformation ability is strong, and crack resistance is the best.
Above example is only in order to illustrative not limiting technical scheme, although the present invention being described in detail with reference to above-described embodiment, it will be understood by those within the art that: still the present invention can be modified or equivalent, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (4)
1. lattice ridge mechanical performance of concrete test method, it is characterised in that: comprise the following steps:
(1) water, cement, fine aggregate and coarse aggregate, are chosen as raw material；Cement carries out consumptive use of water normal consistence, fineness, initial set and final setting time, volume stability, loss on ignition, strength of cement mortar detect；Fine aggregate carries out bulk density, apparent density, clay content, water absorption rate, clod content and modulus of fineness detect；Coarse aggregate carries out grain composition the most successively, apparent density, bulk density, water absorption rate, clay content, crush values, maximum particle diameter detect；
Mix: be encased in blender by the coarse aggregate of the water of 180-200kg, the cement of 300-340kg, the fine aggregate of 500-800kg and 1000-1300kg, opens blender and carries out mix and blend operation, until concrete mix mix homogeneously；
(3), uniform for stirrer for mixing concrete mix is poured in the middle of mould, the apparent density of test concrete mix and the slump；
(4), by concrete mix mechanical pudding, it is fabricated to concrete test block；
(5) maintenance work is carried out in, concrete test block is put into laboratory standard fog room；
(6), the technical parameter of test concrete test block, described parameter includes and 7 day age comprcssive strength, 28 day age comprcssive strength, axial compressive strength and elastic modelling quantity；
(7) to testing out above technical specification or parameter is analyzed, in conjunction with the practical situation of construction, the material mixture ratio of further plaid matching ridge concrete is adjusted.
The lattice ridge the most according to claim 1 mechanical performance of concrete test method, it is characterised in that: described fine aggregate is fluvial sand, and coarse aggregate is blinding or building waste.
The lattice ridge the most according to claim 2 mechanical performance of concrete test method, it is characterised in that: when coarse aggregate is blinding, the weight of water, cement, fluvial sand and blinding contained in concrete mix is respectively 193kg, 323kg, 744kg and 1215kg.
The lattice ridge the most according to claim 2 mechanical performance of concrete test method, it is characterized in that: when coarse aggregate is building waste, the weight of water, cement, fluvial sand and building waste contained in concrete mix is respectively 190kg, 316kg, 597kg and 1065kg.
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| CN201610126840.1A CN105819772A (en) | 2016-03-07 | 2016-03-07 | Grid bank concrete mechanical performance test method |
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| CN201610126840.1A CN105819772A (en) | 2016-03-07 | 2016-03-07 | Grid bank concrete mechanical performance test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196192A (en) * | 2019-06-10 | 2019-09-03 | 中交上海三航科学研究院有限公司 | Underwater foundation repairs packed mixture intensity test method |
Citations (5)
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| JPH11320544A (en) * | 1998-05-15 | 1999-11-24 | Ohbayashi Corp | Manufacture of concrete mixed with reinforcing fiber |
| CN101545299A (en) * | 2009-04-28 | 2009-09-30 | 西安建筑科技大学 | Recycled concrete single-row hole load-bearing block and preparation method thereof |
| CN203373705U (en) * | 2013-07-16 | 2014-01-01 | 上海勘测设计研究院 | Ecological slope protection |
| CN105130293A (en) * | 2015-07-24 | 2015-12-09 | 长江水利委员会长江科学院 | Production method of novel ecological bank protection material |
| CN105367004A (en) * | 2015-11-27 | 2016-03-02 | 山西四建集团有限公司 | C30 durable recycled shaping aggregate concrete prepared from construction wastes and preparation method |
-
2016
- 2016-03-07 CN CN201610126840.1A patent/CN105819772A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11320544A (en) * | 1998-05-15 | 1999-11-24 | Ohbayashi Corp | Manufacture of concrete mixed with reinforcing fiber |
| CN101545299A (en) * | 2009-04-28 | 2009-09-30 | 西安建筑科技大学 | Recycled concrete single-row hole load-bearing block and preparation method thereof |
| CN203373705U (en) * | 2013-07-16 | 2014-01-01 | 上海勘测设计研究院 | Ecological slope protection |
| CN105130293A (en) * | 2015-07-24 | 2015-12-09 | 长江水利委员会长江科学院 | Production method of novel ecological bank protection material |
| CN105367004A (en) * | 2015-11-27 | 2016-03-02 | 山西四建集团有限公司 | C30 durable recycled shaping aggregate concrete prepared from construction wastes and preparation method |
Non-Patent Citations (2)
| Title |
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| 胡汉舟等: "《京沪高速铁路南京大胜关长江大桥技术总结》", 31 March 2011, 中国铁道出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196192A (en) * | 2019-06-10 | 2019-09-03 | 中交上海三航科学研究院有限公司 | Underwater foundation repairs packed mixture intensity test method |
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Address after: 450005 North Ring Road, Jinshui District, Zhengzhou, Henan Province, No. 36 Applicant after: North University of Water Resource and Electric Power Address before: 450046 Henan province Zhengzhou City Road Longzihu College Park No. 1 Applicant before: North University of Water Resource and Electric Power |
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