Unlock instant, AI-driven research and patent intelligence for your innovation.
Cement composition and concrete composition using same
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of concrete composition and cement composition, which is applied in the field of engineering materials, can solve the problems of complex construction technology, early strength of concrete, large mixing amount, etc., and achieve the effect of simple formula, high compressive strength, and easy raw materials
Inactive Publication Date: 2010-04-28
彭勇
View PDF0 Cites 5 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, these additional substances are only single and can only solve a certain aspect of performance problems. For example, water reducing agents can only reduce water; early strength agents can only achieve early strength effects; There are many properties to be solved for cement concrete, and a single effect cannot satisfy the performance problems of cement concrete.
It is also a powdery product, which is not easy to mix; in cement concrete maintenance, it needs to be covered with thermal insulation materials, which brings inconvenience to maintenance
Insufficiencies such as large amount of mixing and high cost point out that in the patent application No. 85108262, it can only improve the fluidity of cement concrete and prevent the consistency change caused by the continuation of practice before hardening. The amount of mixing is large, the cost is high, and the construction process Complicated and other deficiencies; in the patent application No. 991160495, it can only solve the dispersion ability of concrete and the early strength function of water reduction
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] The composition ratio of the cement composition is 26% of ground Portland cement clinker, 68% of ground slagpowder, 5% of silica fume, 0.9% of calciumsulfate, and 0.1% of Fe powder. The weight of the Portland cement is added as The benchmark 3.6% mixture, it is made by RO(AO) n H and HO (AO) m R represents the composition of the substance, where R is C 3 Alkenyl, O is oxygen atom, A is C 4 Alkylene, n is 3, m is 2, and the weight ratio of the former to the latter is 2:1.
[0019] The chemical composition of ground Portland cement clinker is: SiO 2 20%, Fe 2 O 3 Is 4.5%, Al 2 O 3 It is 3.2%, CaO is 63.6%, and MgO is 8.7%.
[0020] 2 parts by weight of the above cement composition, 3 parts by weight of natural construction sand, 1.5 parts by weight of additives, which consist of 55% of hydroxymethylcellulose and 45% of sodium lauryl sulfate.
Embodiment 2
[0022] The composition ratio of the cement composition is 31.7% of ground Portland cement clinker, 61% of ground slag powder, 6% of silica fume, 1% of calciumsulfate, and 03% of Fe powder. The weight of the Portland cement is added as Baseline 3.9% mixture, it is made by RO(AO) n H and HO (AO) m R represents the composition of the substance, where R is C 5 Alkenyl, O is oxygen atom, A is C 6 Alkylene, n is 5, m is 4, and the weight ratio of the former to the latter is 3:1.
[0023] The chemical composition of ground Portland cement clinker is: SiO 2 20.2%, Fe 2 O 3 4.6%, Al 2 O 3 It is 3.3%, CaO is 63.6%, and MgO is 83%.
[0024] 2.5 parts by weight of the above-mentioned cement composition, 33 parts by weight of natural building sand, and 1.7 parts by weight of additives, which consist of 65% of hydroxypropyl methylcellulose and 35% of sodium dodecyl sulfonate.
Embodiment 3
[0026] The following are the results of the physical and chemical properties of the cement products of Examples 1 and 2:
[0027]
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention relates to a novel cement composition and a concrete composition using the cement composition. In the engineering construction, the compositions avoid the harm produced by a great amount of air, and can prevent drying shrinkage and increase the compressive strength; and due to the existence of a little amount of Fe powder, the phenomena of concrete cracking, ageing and the like are overcome, the service life of the concrete is prolonged, and the properties of the concrete such as delayed coagulation, chemical corrosion resistance, freeze protection and the like can also be achieved.
Description
Technical field [0001] The invention relates to the field of engineering materials, in particular to a new type of cement composition and a concrete composition using the same. Background technique [0002] In order to improve the performance of cement and concrete, it is often necessary to add admixtures or admixtures to cement concrete. However, these additional substances are only single and can only solve a certain aspect of performance problems. For example, water reducing agents can only achieve water reducing effects; early strength agents can only achieve early strength effects; retarders can only play To the retarding effect, there are many performances that need to be solved for cement concrete, and a single effect cannot meet the performance problems of cement concrete. The same is a powdery product, not easy to mix; in the curing of cement concrete, it is necessary to cover the insulation material, which brings inconvenience to the maintenance. Insufficient mixing a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More