CN107879697A - A kind of dry-mixed mortar containing cellulose ether - Google Patents

A kind of dry-mixed mortar containing cellulose ether Download PDF

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Publication number
CN107879697A
CN107879697A CN201711370568.2A CN201711370568A CN107879697A CN 107879697 A CN107879697 A CN 107879697A CN 201711370568 A CN201711370568 A CN 201711370568A CN 107879697 A CN107879697 A CN 107879697A
Authority
CN
China
Prior art keywords
dry
parts
cellulose ether
sand
mixed mortar
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201711370568.2A
Other languages
Chinese (zh)
Inventor
闫振
李来波
芦令超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Jinan
Original Assignee
University of Jinan
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 University of Jinan filed Critical University of Jinan
Priority to CN201711370568.2A priority Critical patent/CN107879697A/en
Publication of CN107879697A publication Critical patent/CN107879697A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

Present invention is generally directed to the problem of the poor water retention property of dry-mixed mortar and rheological characteristic difference, the water-retaining property and rheological characteristic of cellulose ether reinforced mortar are added in dry-mixed mortar, so that dry-mixed mortar is more convenient for using and constructed.Present invention generally provides a kind of dry-mixed mortar containing cellulose ether, it is intended to which the problem of changing traditional mortar water-retaining property and poor rheological characteristic, it is made up of following raw material:10 ~ 25 parts of cement, middle 10 ~ 50 parts of sand, 10 ~ 40 parts of fine sand, 10 ~ 20 parts of flyash, 0.2 ~ 0.4 part of cellulose ether, 0.05 ~ 0.15 part of water reducer, 0.05 ~ 0.15 part of air entraining agent.

Description

A kind of dry-mixed mortar containing cellulose ether
Technical field
The invention belongs to building material field, more particularly to a kind of dry-mixed mortar containing cellulose ether.
Background technology
Dry-mixed mortar is generally hydraulic cement mixed mortar, refers to the aggregate through drying screening process(Such as quartz sand)、 Inorganic coagulation material(Such as cement)And additive(Such as polymer)Deng a kind of particle that progress physical mixed forms by a certain percentage Shape or powdery, building site is transported in the form of packed or be in bulk, the material for adding water to can be used directly after mixing and stirring.Also referred to as mortar is done Powder, dry blend, dry mixing powder etc..Dry powder and mortar plays bonding, pad, protection and decoration function in construction industry with thin layer, builds Build with fitting-out work using extremely wide.As the continuous improvement of construction quality, environmental requirement and civilized construction requirement, construction are existing The shortcomings that field mixing mortar and limitation are more and more prominent, and predominantly dry-mixed mortar needs secondary mix and stir after being transported to job site Wasting manpower and material resources, secondly poor for the water holding capacity of dry-mixed mortar, rheological characteristic is poor, is not easy to construct.Present invention is generally directed to dry The problem of poor water retention property and rheological characteristic difference of mortar, the water-retaining property and stream of cellulose ether reinforced mortar are added in dry-mixed mortar Denaturation, so that dry-mixed mortar is more convenient for using and constructed.
The content of the invention
Present invention generally provides a kind of dry-mixed mortar containing cellulose ether, it is intended to changes traditional mortar water-retaining property and rheology The problem of property is poor, it is made up of following raw material:
10 ~ 25 parts of cement, middle 10 ~ 50 parts of sand, 10 ~ 40 parts of fine sand, 10 ~ 20 parts of flyash, 0.2 ~ 0.4 part of cellulose ether, diminishing 0.05 ~ 0.15 part of agent, 0.05 ~ 0.15 part of air entraining agent;
The cement is Portland cement, grade strength 32.5;
The middle sand is continuous grading Machine-made Sand, and content of stone powder is 2 ~ 8%;
The fine sand is continuous grading Machine-made Sand, and content of stone powder is 2 ~ 8%;
The flyash is two level ordinary fly ash;
The cellulose ether is TYLOSE 30000, and viscosity is 300 ~ 1200;
The water reducer is naphthalene series high-efficiency powder water reducer, and diminishing efficiency is 20 ~ 30%;
The air entraining agent is common rosin class air entraining agent.
Case is embodied:
Matched according to above-mentioned technical proposal of the present invention, now carry out two implementation columns and tested and studied.
Embodiment 1:
15 parts of cement, middle 20 parts of sand, 25 parts of fine sand, 15 parts of flyash, 0.2 part of cellulose ether, 0.1 part of water reducer, air entraining agent 0.1 Part.
Embodiment 2:
15 parts of cement, middle 20 parts of sand, 25 parts of fine sand, 15 parts of flyash, 0.4 part of cellulose ether, 0.1 part of water reducer, air entraining agent 0.1 Part.
Dry-mixed mortar of the present invention mix and stir and form of construction work and mixing and stirring for common dry-mixed mortar it is identical with form of construction work, add water Can construction usage after mixing and stirring.
Experiment measuring study, measurement result now are carried out to the water-retaining property and rheological characteristic of the cellulose ether dry-mixed mortar after mixing and stirring It is as shown in the table:
Embodiment Water retention Setting time Denseness loss late Condense compression strength
1 89% 6h 34% 12.4MPa
2 85% 7h 27% 11.7MPa
The increase with cellulose ether is can be seen that from the data of experiment detection, the water-retaining property of dry-mixed mortar strengthens therewith, rheology Performance is also improved well, so as to change some drawbacks of current dry-mixed mortar.
It should be noted that the foregoing description of the disclosed embodiments, a variety of modifications to these embodiments are to ability It will be apparent for the professional and technical personnel in domain, generic principles defined herein can not depart from the present invention's In the case of spirit or scope, realize in other embodiments.Therefore, the present invention be not intended to be limited to it is shown in this article these Embodiment, and it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.

Claims (1)

1. a kind of dry-mixed mortar containing cellulose ether, is characterised by, it is made up of following raw material:
10 ~ 25 parts of cement, middle 10 ~ 50 parts of sand, 10 ~ 40 parts of fine sand, 10 ~ 20 parts of flyash, 0.2 ~ 0.4 part of cellulose ether, diminishing 0.05 ~ 0.15 part of agent, 0.05 ~ 0.15 part of air entraining agent;
The cement is Portland cement, grade strength 32.5;
The middle sand is continuous grading Machine-made Sand, and content of stone powder is 2 ~ 8%;
The fine sand is continuous grading Machine-made Sand, and content of stone powder is 2 ~ 8%;
The flyash is two level ordinary fly ash;
The cellulose ether is TYLOSE 30000, and viscosity is 300 ~ 1200;
The water reducer is naphthalene series high-efficiency powder water reducer, and diminishing efficiency is 20 ~ 30%;
The air entraining agent is common rosin class air entraining agent.
CN201711370568.2A 2017-12-19 2017-12-19 A kind of dry-mixed mortar containing cellulose ether Pending CN107879697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711370568.2A CN107879697A (en) 2017-12-19 2017-12-19 A kind of dry-mixed mortar containing cellulose ether

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711370568.2A CN107879697A (en) 2017-12-19 2017-12-19 A kind of dry-mixed mortar containing cellulose ether

Publications (1)

Publication Number Publication Date
CN107879697A true CN107879697A (en) 2018-04-06

Family

ID=61771826

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711370568.2A Pending CN107879697A (en) 2017-12-19 2017-12-19 A kind of dry-mixed mortar containing cellulose ether

Country Status (1)

Country Link
CN (1) CN107879697A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109399995A (en) * 2018-11-13 2019-03-01 济南大学 A kind of viscosity modifier suitable for 3D printing sulphoaluminate cement base material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126849A (en) * 2011-03-24 2011-07-20 济南大学 Dry mixed mortar
CN106904914A (en) * 2017-04-05 2017-06-30 杭州墨泰科技股份有限公司 A kind of machine spray drying mixed plastering mortar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126849A (en) * 2011-03-24 2011-07-20 济南大学 Dry mixed mortar
CN106904914A (en) * 2017-04-05 2017-06-30 杭州墨泰科技股份有限公司 A kind of machine spray drying mixed plastering mortar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109399995A (en) * 2018-11-13 2019-03-01 济南大学 A kind of viscosity modifier suitable for 3D printing sulphoaluminate cement base material
CN109399995B (en) * 2018-11-13 2021-04-16 济南大学 Viscosity modifier suitable for 3D printing of sulphoaluminate cement-based material

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Application publication date: 20180406

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