Ronald Eugene Langston
Engineers at Langwood, Houston, TX

License number
Colorado 22942
Issued Date
Nov 9, 1984
Renew Date
Dec 1, 2006
Expiration Date
Nov 30, 2008
Type
Professional Engineer
Address
Address
746 Langwood Dr, Houston, TX 77079

Personal information

See more information about Ronald Eugene Langston at radaris.com
Name
Address
Phone
Ronald Langston, age 82
5508 Taylor Rd, River Oaks, TX 76114
(817) 805-2549
Ronald Langston, age 82
746 Langwood Dr, Houston, TX 77079
(281) 536-6968
Ronald Langston
13786 Hollowgreen Dr, Houston, TX 77082
Ronald Langston, age 80
242 Timothy Trl, Duncanville, TX 75137
Ronald Langston
13786 Hollowgreen Dr, Houston, TX 77082

Professional information

Ronald Langston Photo 1

Methods In The Engineering Design And Construction Of Earthen Fills

US Patent:
2005001, Jan 27, 2005
Filed:
Aug 23, 2004
Appl. No.:
10/924132
Inventors:
Philip Tritico - Katy TX, US
Ronald Langston - Houston TX, US
International Classification:
E02D003/02
US Classification:
405271000
Abstract:
The invention is a composite of interdependent engineering methods for earthen fill engineering and construction. The invention includes the development, utilization, and correlation of actual, cumulative field compaction energies, unique to and based on field combination-specific variables of any combination but including all of the following: soil type, compactor type, lift thickness, moisture content, and soil amendment type and mix. Interdependent development of the field combination-specific compaction energies includes the following combination-specific steps: novel rolling resistance energy versus dry density field trials, novel generation and direct curvalinear utilization of parabolic rolling resistance energy curves with roller passes, novel determination of asymptotic energy-density approach ranges, novel selection and application of percentage density sectors on novel moisture-density curves, and novel projection of said percentage density sectors onto corresponding roller compaction energy curves for selection and use of design compaction energy levels. Interdependent correlation of the combination-specific energy values is made with all physical and engineering properties of all soil types and amended soil types in the compacted state that corresponds to and is the product of the specific combination of field variables. In addition to interdependent utilization of the energy and corresponding engineering properties in method development, the energy and corresponding engineering properties are tabulated within cross-matrices of all field combinations for use in engineering design, laboratory compaction testing, and construction controls. The cross-matrix values are related in a manner that permits determining values for additional field combinations that have not been tested on a full scale.


Ronald Langston Photo 2

Engineering Design And Construction Of Earthen Fills

US Patent:
2008000, Jan 3, 2008
Filed:
Sep 18, 2006
Appl. No.:
11/522701
Inventors:
Philip Tritico - Katy TX, US
Ronald Langston - Houston TX, US
International Classification:
G01N 33/24
US Classification:
702002000
Abstract:
The invention is a composite of interdependent engineering methods for earthen fill engineering and construction. The invention includes the development, utilization, and correlation of actual, cumulative field compaction energies, unique to and based on field combination-specific variables of any combination but including all of the following: soil type, compactor type, lift thickness, moisture content, and soil amendment type and mix. Interdependent development of the field combination-specific compaction energies includes the following combination-specific steps: novel compaction energy energy versus dry density field trials, novel generation and direct curvalinear utilization of parabolic compaction energy curves with roller passes, novel determination of asymptotic energy-density approach ranges, novel selection and application of percentage density sectors on novel site-specific moisture-density curves, and novel projection of said percentage density sectors onto corresponding moisture-compaction energy curves for selection and use of novel site-specific compaction energy levels. Interdependent correlation of the combination-specific energy values is made with all physical and engineering properties of all soil types and amended soil types in the compacted state that corresponds to and is the product of the specific combination of field variables. In addition to interdependent utilization of the energy and corresponding engineering properties in method development, the energy and corresponding engineering properties are cross-tabulated or integrated with curve intercepts within data-based cross-matrices of all field combinations for use in engineering design, laboratory compaction testing, and construction controls including site-specific moisture-density curve location. The cross-matrix values are related or intercepted in a manner that permits determining values for additional field combinations that have not been tested on a full scale.


Ronald Langston Photo 3

Engineering Design And Construction Of Earthen Fills

US Patent:
2012007, Mar 29, 2012
Filed:
Jan 4, 2011
Appl. No.:
12/930391
Inventors:
Philip A. Tritico - Houston TX, US
Ronald E. Langston - Houston TX, US
Assignee:
Earthwork Solutions, LLC - Houston TX
International Classification:
G06F 19/00, G01V 9/00
US Classification:
702 2
Abstract:
The invention is a composite of interdependent engineering methods for earthen fill engineering and construction. The invention provides a computer method for correlation of the combination-specific energy values with all physical and engineering properties of all soil types and amended soil types in the compacted state that correspond to and are the product of the specific combination of field variables. In addition to interdependent utilization of the energy and corresponding engineering properties in method development, the energy and corresponding engineering properties are cross-tabulated or integrated with curve intercepts within data-based cross-matrices of all field combinations for use in engineering design, laboratory compaction testing, and construction controls including site-specific moisture-density curve location. The cross-matrix values are related or intercepted in a manner that permits determining values for additional field combinations that have not been tested on a full scale.