CN103601386A - Aggregate for concrete with strength grade more than 20C - Google Patents

Aggregate for concrete with strength grade more than 20C Download PDF

Info

Publication number
CN103601386A
CN103601386A CN201310555210.2A CN201310555210A CN103601386A CN 103601386 A CN103601386 A CN 103601386A CN 201310555210 A CN201310555210 A CN 201310555210A CN 103601386 A CN103601386 A CN 103601386A
Authority
CN
China
Prior art keywords
concrete
sand
dust
aggregate
strength grade
Prior art date
Application number
CN201310555210.2A
Other languages
Chinese (zh)
Inventor
周兆弟
Original Assignee
周兆弟
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 周兆弟 filed Critical 周兆弟
Priority to CN201310555210.2A priority Critical patent/CN103601386A/en
Publication of CN103601386A publication Critical patent/CN103601386A/en

Links

Abstract

The invention relates to an aggregate for concrete with strength grade more than 20C. The aggregate not only can be fully utilized, but also can further improve the strength grade of the concrete on the premise of reducing the usage amount of the cement. Surfaces of machine-made sand or stones adopted in the concrete are dust breaking surfaces. The aggregate has the advantages of firstly setting a precedent on adopting sand or stones containing machine-made sand dust surfaces as one of concrete main materials; secondly, fundamentally solving the problems that the centrifugal formation or vibrating formation of concrete structures causes the reduction of the binding property between the cement slurry and aggregate surfaces, and surface defects of the concrete structures due to throwing or ascending, and ensuring the non-reduction of cement constitution in the concrete structures, and high formation strength grade; thirdly, not only realizing the utilization of wastes, but also protecting the environment and avoiding the occurrence of earth caking phenomenon caused by aggregate dust by adopting sand or stone on the aggregate dust surfaces as a main material of the concrete.

Description

For the concrete gravel of strength grade more than 20C
Technical field
The present invention relates to a kind of in concrete material both without cleaning sand or stone surface dust, because making, to become the stone of stone intensity must be very high, the intensity of sand is also that the very high particle diameter intensity below 0.15mm is also like this so, and can make full use of fine sand, stone flour dirt, fill all spaces that differ in size, greatly improved concrete density, greatly improved concrete strength simultaneously, under the prerequisite of a large amount of minimizing cement consumptions, further improve strength grade of concrete a kind of for strength grade the concrete gravel more than 20C, belong to the required sand of concrete or stone and manufacture field.
Background technology
In building trade, because natural sand is taken from riverbed, rivers and lakes lakebed, and take from riverbed, the natural sand of rivers and lakes lakebed, the fine sand that all contains a large amount of mud and efflorescence stone or full efflorescence, because the full efflorescence layer of being originally of this sand or strong efflorescence stone are collided ditch, streams by flood from mountain, huge port, river, because of the raw material of natural sand cannot guarantee be same intensity with stone matter, so cause the high end of sand intensity of the same particle diameter of natural sand to differ completely, so particle diameter is less than the intensity foundation of 0.15 natural sand, and yellow ground below 0.15mm cannot be realized water and cleans, cannot reach for by sand, the object that mud is separated clean, therefore country is when working out yellow ground use standard, ban use of particle diameter to be less than the yellow ground below 0.15mm, and natural yellow ground after water cleans, although surface cleaning, but decline with the adhesion property of cement, when high speed centrifugation is made stake, pipe, bar member, or high-frequency vibration is made structures (coagulation bridge structure beam, precoated plate, Super High concrete frame) time, its high-frequency vibration causes the adhesion property between grout and sandstone to decline, rise to concrete structure condensate surface, cause structures internal water cement content to decline, set strength reduces.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design a kind of in concrete material both without cleaning sand or stone surface dust, and can make full use of sandstone dust, can reduce cement consumption again
Prerequisite under, further improve strength grade of concrete a kind of for strength grade the concrete gravel more than 20C.
Design: in order to realize above-mentioned purpose of design.The Machine-made Sand adopting in concrete or block faces are the employing of broken dust face, are technical characteristics of the present invention.The object of doing is like this: are Machine-made Sands due to current building trade with the employings of the sand overwhelming majority, and the exploitation that the exploitation of Machine-made Sand country expressly provides tor is buried big gun cut into a mountain for quarrying (seeing accompanying drawing 1) in the vertical duct of cascaded surface from top to bottom, do not permit horizontal duct to bury big gun exploitation, its objective is in order to guarantee exploitation of stone security, prevent the generation of serious accident, yet the vertical duct of this cascaded surface is from top to bottom buried method that big gun cuts into a mountain for quarrying and has but been brought up before cutting into a mountain for quarrying covering tor soil property is all rooted out, solve traditional middle earth of cutting into a mountain for quarrying and mixed the phenomenon in building stones, resulting building stones are not containing earth, made Machine-made Sand is not containing earth, its Machine-made Sand or machine-processed block faces in making processes sticky face sandstone dust, because this sandstone dust is not containing earth composition, for pure stone matter particle, therefore the cleaning without water both can be directly used in the concrete of strength grade more than 20C, particle is less than that 0.15 millimeter of sandstone dust has good adhesivity and by adhesivity, therefore it can form good adhesion granule simultaneously with cement dust, because cement fineness is thinner, its activity is higher, therefore when the concrete that adds sandstone dust during at formation prefabricated component not only degree of compactness greatly improve, and strength grade is improved significantly.
Technical scheme: a kind of for strength grade the concrete gravel more than 20C, the Machine-made Sand adopting in described concrete or block faces are broken dust face.
The present invention compares with background technology, and the one, started and adopted the sand that contains Machine-made Sand stone flour dirt face or stone as the precedent of one of concrete major ingredient; The 2nd, fundamentally solved cement slurry and the sandstone surface adhesion performance that concrete structures causes when flospinning or vibration shaping and reduced, thrown to cause or rise and cause the defect on concrete structures surface, guaranteed that in concrete structures, cement composition does not reduce, fabrication strength grade is high; The 3rd, adopt the sand of sandstone dust face or stone as concrete major ingredient, not only realize waste material utilization, and protected environment, avoided the generation of the hardening soil phenomenon that sandstone dust causes.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that big gun is buried in present tor exploitation.
Embodiment
Embodiment 1: a kind of for strength grade the concrete gravel more than 20C, the Machine-made Sand adopting in described concrete or block faces are broken dust face.The order number of the sandstone dust of described broken dust face is less than 0.15mm.
Embodiment 2: on the basis of embodiment 1: (1) a kind of when for strength grade, the concrete gravel more than 20C is used for making concrete pile, due to concrete tubular pile, be configured as high speed centrifugation moulding method, concrete in pile tube shaping mould under ultracentrifugal effect, in its concrete, cement composition is thrown tube wall under ultracentrifugal effect, make the huge increasing of cement component content of tube wall wall, the cement composition of tube wall own reduces, degree of compactness reduces, lead concrete tubular pile intensity and cannot reach high-density so far, high strength, and the process of Machine-made Sand or machine-processed stone mechanism, its Machine-made Sand face or machine-processed stone face are adhering to a large amount of sandstone dust, the particle size range of this sandstone dust by carefully to 1/10 μ m to hundreds of micron, and this fine solid particles can not only disperse (suspension) in gas, and there is good adhesivity, when itself and cement particulate occur mutually to adhere to, both made under ultracentrifugal effect, also cannot be by cement particulate and sandstone dust separation, thereby when Machine-made Sand or machine-processed stone and cement mixing formation concrete, the sandstone dust of its Machine-made Sand or machine-processed block faces not only has good filling function, improve concrete degree of compactness, and can fundamentally solve that concrete tubular pile is centrifugal to be manufactured caused cement slurry and reduced by the tube wall degree of compactness of throwing tube wall wall and causing, the defect that intensity is low.(2) a kind of when for strength grade, the concrete gravel more than 20C is used for making concrete structures, because being shaped, concrete structures adopt high-frequency vibration that concrete degree of compactness is increased, and cement composition declines with the adhesion property of sandstone under the effect of high-frequency vibration in concrete, cause the huge increasing of cement component content on structures surface, inner cement composition reduces, strength grade of concrete reduces, cannot reach high-density, high strength, and the process of Machine-made Sand or machine-processed stone mechanism, its Machine-made Sand face or machine-processed stone face are adhering to a large amount of sandstone dust, the particle size range of this sandstone dust by carefully to 1/10 μ m to hundreds of micron, and this fine solid particles can not only disperse (suspension) in gas, and there is good adhesivity, when itself and cement particulate occur mutually to adhere to, both made under the effect of high-frequency vibration, also cannot be by cement particulate and sandstone dust separation, thereby work as and sandstone, when cement mixing forms concrete, not only there is good filling function, improve concrete strength grade, and can fundamentally solve concrete and construct part and manufacture the defect that caused cement slurry and sandstone adhesion property decline, guaranteed the raising of concrete structures strength grade.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.

Claims (3)

1. the concrete gravel more than 20C for strength grade, is characterized in that: the Machine-made Sand adopting in described concrete, stone or block faces are broken dust face.
According to claim 1 for strength grade the concrete sand more than 20C, stone, it is characterized in that: described broken dust face intensity, performance and sand, stone are identical, and particle diameter is less than particle and the dust below 0.15mm.
According to claim 2 for strength grade the concrete sand more than 20C, stone, it is characterized in that: particle and dust that particle diameter is less than below 0.15mm can be closely knit the sandstone pore filling below 0.15mm, sand, stone degree of compactness are increased, and cubical proportion increases.
CN201310555210.2A 2013-11-11 2013-11-11 Aggregate for concrete with strength grade more than 20C CN103601386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310555210.2A CN103601386A (en) 2013-11-11 2013-11-11 Aggregate for concrete with strength grade more than 20C

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310555210.2A CN103601386A (en) 2013-11-11 2013-11-11 Aggregate for concrete with strength grade more than 20C

Publications (1)

Publication Number Publication Date
CN103601386A true CN103601386A (en) 2014-02-26

Family

ID=50119672

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310555210.2A CN103601386A (en) 2013-11-11 2013-11-11 Aggregate for concrete with strength grade more than 20C

Country Status (1)

Country Link
CN (1) CN103601386A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005320345A1 (en) * 2005-12-20 2007-07-05 Greengauge Pty Ltd A base for a playing field
CN101077829A (en) * 2006-05-25 2007-11-28 陈龙山 Lightweight wall brick and preparation method thereof
CN101148339A (en) * 2006-09-19 2008-03-26 马维 Water pervious concrete and producing method thereof
CN103113062A (en) * 2013-02-01 2013-05-22 同济大学 Metamorphite machine-made sand concrete capable of inhibiting alkali activity of metamorphite aggregate and preparation method thereof
CN103288398A (en) * 2013-05-15 2013-09-11 宁波市高等级公路建设指挥部 High-performance machine-made sand marine concrete and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005320345A1 (en) * 2005-12-20 2007-07-05 Greengauge Pty Ltd A base for a playing field
CN101077829A (en) * 2006-05-25 2007-11-28 陈龙山 Lightweight wall brick and preparation method thereof
CN101148339A (en) * 2006-09-19 2008-03-26 马维 Water pervious concrete and producing method thereof
CN103113062A (en) * 2013-02-01 2013-05-22 同济大学 Metamorphite machine-made sand concrete capable of inhibiting alkali activity of metamorphite aggregate and preparation method thereof
CN103288398A (en) * 2013-05-15 2013-09-11 宁波市高等级公路建设指挥部 High-performance machine-made sand marine concrete and preparation method thereof

Similar Documents

Publication Publication Date Title
Rana et al. Recycling of dimensional stone waste in concrete: A review
Dwivedi et al. Fly ash–waste management and overview: A Review
CN102390963B (en) Recycled aggregate medium-dry hard concrete prepared by using building waste and preparation method of recycled aggregate medium-dry hard concrete
CN104402339B (en) The constructional method of pervious concrete
CN104310905B (en) Slope of highway silt firming agent and preparation method thereof
CN101456705B (en) Hydraulic bag concrete using industrial solid wastes
CN101081981B (en) Muck soil composite curing agent
KR100988151B1 (en) Hardening material comprising soil, industrial wastes, sea sand and desert sand, and method for preparing the same
CN204875416U (en) Porous pavement structure
CN105016678B (en) High-early-strength cement-based filling material for semi-flexible composite pavements
CN202031001U (en) Compound water-permeable road structure
CN100364918C (en) Inorganic regenerated concrete mixture and its preparing method
CN102503281A (en) Baking-free gravel attapulgite building garbage ceramsite
CN101602567B (en) Waste mud solidification processing method based on polypropylene acetamide
CN101654356B (en) Shield method tunnel synchronous grouting slurry applied to compound stratum with upper soft part and lower hard part
CN105970979A (en) Ecological slope protection method based on sludge solidification soil
CN102863242B (en) Attapulgite volcaniclastic rock heat insulation raw material powder
CN103011637A (en) Bare concrete binding material and corrosion-resistant bare concrete utilizing same
CN101220590A (en) Sullage solidifying method
CN105776994A (en) Self-compacting concrete prepared from concrete mixing station waste slurry
CN106830777B (en) The regeneration fill concrete of consumer waste incineration residue preparation and its application
CN206840437U (en) A kind of building field charging device
RU2541009C2 (en) Improved road-building soil
CN102644225B (en) Multifunctional self-snow-melting, anti-skidding, water-drainage and noise-reduction bituminous pavement
CN103319121B (en) Fluidic backfill material produced by building garbage fines and construction method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20140226