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![](https://static.wixstatic.com/media/b2c0a7_5c62de1034e647d8b9bde3daaa81957b.png/v1/fill/w_96,h_58,al_c,q_85,usm_0.66_1.00_0.01,blur_2,enc_auto/b2c0a7_5c62de1034e647d8b9bde3daaa81957b.png)
GEO-INNOVATIONS RESEARCH LAB
SAN DIEGO STATE UNIVERSITY
![group_2022.jpeg](https://static.wixstatic.com/media/bf7a2c_b5a57d9eb76249ff9bd29e5c0ce97316~mv2.jpeg/v1/crop/x_140,y_176,w_2846,h_914/fill/w_965,h_310,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/group_2022.jpeg)
Julio R. Valdes, Ph.D.
Senate Distinguished Professor
Civil, Construction, and Env. Eng.
San Diego State University
jvaldes at sdsu.edu
Current Research Students
![](https://static.wixstatic.com/media/bf7a2c_60218efb69ae402c8e4a3d8390bbf509~mv2.jpg/v1/fill/w_141,h_204,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/bf7a2c_60218efb69ae402c8e4a3d8390bbf509~mv2.jpg)
Jon Cabrera
Polymer-bonded clays
![](https://static.wixstatic.com/media/bf7a2c_b64b5f00add84f3dacdfb93df7e465ed~mv2.jpeg/v1/crop/x_174,y_135,w_2791,h_3502/fill/w_163,h_204,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/bf7a2c_b64b5f00add84f3dacdfb93df7e465ed~mv2.jpeg)
Amanda Martinez
Polymer-bonded sands
![Ranya_edited.jpg](https://static.wixstatic.com/media/bf7a2c_5580bdbd0b2348eaaa90513c9834543f~mv2.jpg/v1/crop/x_20,y_0,w_160,h_200/fill/w_160,h_200,al_c,q_80,enc_auto/Ranya_edited.jpg)
Ranya Zina
Lunar regolith simulants
Former Graduate Students
![_edited_edited.jpg](https://static.wixstatic.com/media/bf7a2c_8594e0a0e774464395d24e82c30e212b~mv2.jpg/v1/fill/w_118,h_167,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/_edited_edited.jpg)
David Riley
Breakage
(stiffness monitoring)
![](https://static.wixstatic.com/media/bf7a2c_ad270e6eef144818a5cc887dbb448fd7~mv2.jpg/v1/crop/x_0,y_0,w_526,h_738/fill/w_109,h_153,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_ad270e6eef144818a5cc887dbb448fd7~mv2.jpg)
Kishore K. Shivaram
Cementation
![](https://static.wixstatic.com/media/bf7a2c_3edccaa964c84fcf984d40f67caf3cdd~mv2.jpg/v1/fill/w_121,h_164,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_3edccaa964c84fcf984d40f67caf3cdd~mv2.jpg)
Chris Vonk
Expansive soils
![](https://static.wixstatic.com/media/bf7a2c_7e8f75919c8c4e82bc7c3077feb7d833.jpg/v1/fill/w_124,h_155,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_7e8f75919c8c4e82bc7c3077feb7d833.jpg)
Pouya Golshan
Localization
![](https://static.wixstatic.com/media/bf7a2c_a0763d36dc7f4b5c99f37f9564e495d1.jpg/v1/fill/w_126,h_144,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_a0763d36dc7f4b5c99f37f9564e495d1.jpg)
Nicole Salem
Filtration
![](https://static.wixstatic.com/media/bf7a2c_3575039c28de461081935262a636b780.jpg/v1/fill/w_118,h_157,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_3575039c28de461081935262a636b780.jpg)
Nicole Garcia
Cemented Sands
![](https://static.wixstatic.com/media/bf7a2c_187b1a157216400bab0ed8b7a012c23f.jpg/v1/fill/w_114,h_149,al_c,lg_1,q_80,blur_3,enc_auto/bf7a2c_187b1a157216400bab0ed8b7a012c23f.jpg)
Colm Kenny
Fines migration
![](https://static.wixstatic.com/media/bf7a2c_9e737306ec9a4f47bceb63b3f36048cc.jpg/v1/fill/w_111,h_149,al_c,lg_1,q_80,blur_3,enc_auto/bf7a2c_9e737306ec9a4f47bceb63b3f36048cc.jpg)
Fabio Fernandes
AE monitoring
![](https://static.wixstatic.com/media/bf7a2c_6204d25057ce46a39a9080b31b1ddd71.jpg/v1/fill/w_87,h_112,al_c,lg_1,q_80,blur_3,enc_auto/bf7a2c_6204d25057ce46a39a9080b31b1ddd71.jpg)
Arce Doble
Stress relaxation
![](https://static.wixstatic.com/media/bf7a2c_c3ba024f460b44529f8fa57a198e3965.jpg/v1/fill/w_112,h_157,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_c3ba024f460b44529f8fa57a198e3965.jpg)
Johan Gallay
Localized compaction
![](https://static.wixstatic.com/media/bf7a2c_7cb75def716443c7ae656e8badd954e3.jpg/v1/fill/w_107,h_149,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_7cb75def716443c7ae656e8badd954e3.jpg)
Ujwal Patil
Expansive soils
![](https://static.wixstatic.com/media/bf7a2c_2fc3ceb11e0f4bb2823269668357794b.jpg/v1/fill/w_124,h_157,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_2fc3ceb11e0f4bb2823269668357794b.jpg)
Lilian Rodriguez Breakage
![](https://static.wixstatic.com/media/bf7a2c_dafc534873fa4135b967f141135a12be.jpg/v1/fill/w_104,h_149,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_dafc534873fa4135b967f141135a12be.jpg)
Vicky Karanikola
Filtration
![](https://static.wixstatic.com/media/bf7a2c_1e4a263e3fed4eabbb8c1c0ba0a2ab70.png/v1/fill/w_121,h_157,al_c,q_85,blur_3,enc_auto/bf7a2c_1e4a263e3fed4eabbb8c1c0ba0a2ab70.png)
Iko Syahrial
Breakage
(AE and Vp monitoring)
![](https://static.wixstatic.com/media/bf7a2c_491b3ee436db47dd9d049989543fe738.jpg/v1/fill/w_125,h_156,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_491b3ee436db47dd9d049989543fe738.jpg)
Anh (Vicky) Ngo
Granulated tire rubber
![](https://static.wixstatic.com/media/bf7a2c_5bd62b922417485d92529e016b40c639.jpg/v1/fill/w_125,h_155,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_5bd62b922417485d92529e016b40c639.jpg)
Selene Leleu
Breakage
(mineralogy effects)
![](https://static.wixstatic.com/media/bf7a2c_5cee6a6a3e344954a6c3dc1115bb009f.jpg/v1/fill/w_125,h_153,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_5cee6a6a3e344954a6c3dc1115bb009f.jpg)
Eren Koprulu
Breakage
(internal stability)
![](https://static.wixstatic.com/media/bf7a2c_82b9cb3b2c31411ba00105c5a28cd672.jpg/v1/fill/w_123,h_157,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_82b9cb3b2c31411ba00105c5a28cd672.jpg)
Doug Jacobson Conglomerates
![](https://static.wixstatic.com/media/bf7a2c_218e0694c51a4ebc98156c23c522d9f3.jpg/v1/fill/w_125,h_153,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_218e0694c51a4ebc98156c23c522d9f3.jpg)
Eddie Liang
Smart filtrers
![](https://static.wixstatic.com/media/bf7a2c_1fe1abfbc56b4837b93093985a2bd505.jpg/v1/fill/w_121,h_157,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_1fe1abfbc56b4837b93093985a2bd505.jpg)
Benito Caban
Breakage
(permeability)
![](https://static.wixstatic.com/media/bf7a2c_f1b5144347824d53b8abf8c0c0740d2a.jpg/v1/fill/w_120,h_157,al_c,q_80,usm_0.66_1.00_0.01,blur_3,enc_auto/bf7a2c_f1b5144347824d53b8abf8c0c0740d2a.jpg)
Pambos Lestas
Radial clogging
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