US4144078A
Expired / Lapsed
US
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Masonry cement
Assignee: Mid-Florida Mining Co
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Filing: 1978-02-15
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Granted: 1979-03-13
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Expires: 1998-02-15
Abstract
Abstract A masonry mortar composition with performance parameters of water retention, plasticity and compressive strength greater than the ASTM standards, consisting essentially of Portland cements, aggregate, water and a calcium magnesium aluminum silicate which replaces the conventional hydrated lime. Preferred compositions are disclosed.
Inventors
- 👤 Omar K. Colwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:20
CPC Classifications
C; C04; C04B; C04B22/00; C04B14/00; C04B14/02; C04B14/04; C04B14/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
104 words
In a masonry mortar composition consisting essentially in the dry state of Portland cement and aggregate present in amounts sufficient to form a conventional mortar composition, the improvement consisting of the inclusion in the composition of a calcium magnesium aluminum silicate having a plasticity value greater than 700, said calcium magnesium aluminum silicate present in a ratio between 3:7 and 4:6 by weight to Portland cement, the ratio of Portland cement to fine aggregate being between 1:4 and 3:20 by weight and the composition having a water retention greater than 75% when sufficient water is added to obtain a flow of 110 ± 5.
Claim 2
Dependent Claim
104 words
In a masonry mortar composition consisting essentially in the dry state of Portland cement and aggregate present in amounts sufficient to form a conventional mortar composition, the improvement consisting of the inclusion in the composition of a calcium magnesium aluminum silicate having a plasticity value greater than 700, said calcium magnesium aluminum silicate present in a ratio between 3:7 and 4:6 by weight to Portland cement, the ratio of Portland cement to fine aggregate being between 1:4 and 3:20 by weight and the composition having a water retention greater than 75% when sufficient water is added to obtain a flow of 110 ± 5.
Claim 3
Dependent Claim
123 words
In a masonry mortar composition consisting essentially in the dry state of Portland cement and aggregate present in amounts sufficient to form a conventional mortar composition, the improvement consisting of the inclusion in the composition of a calcium magnesium aluminum silicate with an analysis of silicon dioxide: 50-70 aluminum oxide: 7-16 calcium oxide: 3-9 magnesium oxide: 1-7 other oxides: 1-10, by weight percent, said hydrated calcium magnesium aluminum silicate present in a ratio between 3:7 and 4:6 by weight of the silicate to Portland cement, the ratio of Portland cement to fine aggregate being between 1:4 and 3:20 by weight and the composition having a water retention greater than 75% when sufficient water is added to obtain a flow of 110 ± 5.
Claim 4
Dependent Claim
123 words
In a masonry mortar composition consisting essentially in the dry state of Portland cement and aggregate present in amounts sufficient to form a conventional mortar composition, the improvement consisting of the inclusion in the composition of a calcium magnesium aluminum silicate with an analysis of silicon dioxide: 50-70 aluminum oxide: 7-16 calcium oxide: 3-9 magnesium oxide: 1-7 other oxides: 1-10, by weight percent, said hydrated calcium magnesium aluminum silicate present in a ratio between 3:7 and 4:6 by weight of the silicate to Portland cement, the ratio of Portland cement to fine aggregate being between 1:4 and 3:20 by weight and the composition having a water retention greater than 75% when sufficient water is added to obtain a flow of 110 ± 5.
Claim 5
Dependent Claim
21 words
The mortar of claim 1 wherein the ratio of calcium magnesium aluminum silicate to Portland cement is approximately 0.53:1 by weight.
Claim 6
Dependent Claim
48 words
The mortar of claim 1 wherein the calcium magnesium aluminum silicate consists essentially of a composition with the following chemical analysis: Silicon Dioxide: 60-70 Aluminum Oxide: 9-15 Calcium Oxide: 3-9 Magnesium Oxide: 2-5 Iron Oxide: 1-6 Sulfur Oxide: 0.03-2 Potassium Oxide: 1-4 Titanium Dioxide: 0.1-2 Sodium Oxide: 0.1-2.
Claim 7
Dependent Claim
26 words
The mortar of claim 1 wherein the aggregate is in an amount between 65 and 80 weight percent based on the weight of the total composition.
Claim 8
Dependent Claim
18 words
A masonry mortar of claim 2 wherein the calcium magnesium aluminum silicate has a plasticity greater than 700.
Claim 9
Dependent Claim
91 words
A masonry mortar composition having a water retention greater than 75% consisting essentially of A. a calcium magnesium aluminum silicate with an analysis by weight percent of: silicon dioxide: 50-70% aluminum oxide: 7-16% calcium oxide: 3-9% magnesium oxide: 1-7% other oxides: 1-10% and a plasticity value greater than 700, B. portland cement; C. fine aggregate; and D. water, the ratio of B:A being between 7:3 and 6:4 by weight, the ratio of B:C being between 1:4 and 3:20 and the water being sufficient to obtain a flow of 110 ± 5.
Claim 10
Dependent Claim
91 words
A masonry mortar composition having a water retention greater than 75% consisting essentially of A. a calcium magnesium aluminum silicate with an analysis by weight percent of: silicon dioxide: 50-70% aluminum oxide: 7-16% calcium oxide: 3-9% magnesium oxide: 1-7% other oxides: 1-10% and a plasticity value greater than 700, B. portland cement; C. fine aggregate; and D. water, the ratio of B:A being between 7:3 and 6:4 by weight, the ratio of B:C being between 1:4 and 3:20 and the water being sufficient to obtain a flow of 110 ± 5.
Claim 11
Dependent Claim
45 words
A masonry mortar of claim 7 wherein A consists essentially of a composition with the following chemical analysis: Silicon Dioxide: 60-70 Aluminum Oxide: 9-15 Calcium Oxide: 3-9 Magnesium Oxide: 2-5 Iron Oxide: 1-6 Sulfur Oxide: 0.03-2 Potassium Oxide: 1-4 Titanium Dioxide: 0.1-2 Sodium Oxide: 0.1-2.
Claim 12
Dependent Claim
15 words
A masonry mortar of claim 6 wherein A has a plasticity value greater than 900.
Claim 13
Dependent Claim
102 words
A process for producing an ASTM C 270-68 masonry mortar comprising substituting a calcium magnesium aluminum silicate consisting essentially of a composition of the following chemical analysis: Silicon Dioxide: 60-70 Aluminum Oxide: 9-15 Calcium Oxide: 3-9 Magnesium Oxide: 2-5 Iron Oxide: 1-6 Sulfur Oxide: 0.03-2 Potassium Oxide: 1-4 Titanium Dioxide: 0.1-2 Sodium Oxide: 0.1-2 for hydrated lime in the conventional mortar mix consisting essentially of aggregate, Portland cement and hydrated lime wherein the weight ratio of calcium magnesium aluminum silicate to Portland cement is between 3:7 and 4:6 and the weight ratio of Portland cement to fine aggregate being 1:4 and 3:20.
Claim 14
Dependent Claim
102 words
A process for producing an ASTM C 270-68 masonry mortar comprising substituting a calcium magnesium aluminum silicate consisting essentially of a composition of the following chemical analysis: Silicon Dioxide: 60-70 Aluminum Oxide: 9-15 Calcium Oxide: 3-9 Magnesium Oxide: 2-5 Iron Oxide: 1-6 Sulfur Oxide: 0.03-2 Potassium Oxide: 1-4 Titanium Dioxide: 0.1-2 Sodium Oxide: 0.1-2 for hydrated lime in the conventional mortar mix consisting essentially of aggregate, Portland cement and hydrated lime wherein the weight ratio of calcium magnesium aluminum silicate to Portland cement is between 3:7 and 4:6 and the weight ratio of Portland cement to fine aggregate being 1:4 and 3:20.
Claim 15
Dependent Claim
24 words
A masonry mortar of claim 8 wherein the calcium, magnesium, aluminum silicate, Portland cement and aggregate are in the ratio of 8:15:77 by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |