Green and early age compressive strength of extruded cement mortar monitored with compression tests and ultrasonic techniques

@article{citeulike:2745463, abstract = {Knowledge about the early age compressive strength development of cementitious materials is an important factor for the progress and safety of many construction projects. This paper uses cylindrical mortar specimens produced with a ram extruder to investigate the transition of the mortar from plastic and deformable to hardened state. In addition, wave transmission and reflection measurements with P- and S-waves were conducted to obtain further information about the microstructural changes during the setting and hardening process. The experiments have shown that uniaxial compression tests conducted on extruded mortar cylinders are a useful tool to evaluate the green strength as well as the initiation and further development of the compressive strength of the tested material. The propagation of P-waves was found to be indicative of the internal structure of the tested mortars as influenced, for example, by the addition of fine clay particles. S-waves used in transmission and reflection mode proved to be sensitive to the inter-particle bonding caused by the cement hydration and expressed by an increase in compressive strength.}, author = {Voigt, Thomas and Malonn, Tim and Shah, Surendra P. }, citeulike-article-id = {2745463}, doi = {10.1016/j.cemconres.2005.09.005}, journal = {Cement and Concrete Research}, keywords = {green, strength}, month = {May}, number = {5}, pages = {858--867}, posted-at = {2008-05-02 12:46:34}, priority = {5}, title = {Green and early age compressive strength of extruded cement mortar monitored with compression tests and ultrasonic techniques}, url = {http://dx.doi.org/10.1016/j.cemconres.2005.09.005}, volume = {36}, year = {2006} }

TY - JOUR ID - citeulike:2745463 L3 - citeulike-article-id:2745463 TI - Green and early age compressive strength of extruded cement mortar monitored with compression tests and ultrasonic techniques JF - Cement and Concrete Research VL - 36 IS - 5 SP - 858 EP - 867 N2 - Knowledge about the early age compressive strength development of cementitious materials is an important factor for the progress and safety of many construction projects. This paper uses cylindrical mortar specimens produced with a ram extruder to investigate the transition of the mortar from plastic and deformable to hardened state. In addition, wave transmission and reflection measurements with P- and S-waves were conducted to obtain further information about the microstructural changes during the setting and hardening process. The experiments have shown that uniaxial compression tests conducted on extruded mortar cylinders are a useful tool to evaluate the green strength as well as the initiation and further development of the compressive strength of the tested material. The propagation of P-waves was found to be indicative of the internal structure of the tested mortars as influenced, for example, by the addition of fine clay particles. S-waves used in transmission and reflection mode proved to be sensitive to the inter-particle bonding caused by the cement hydration and expressed by an increase in compressive strength. KW - green KW - strength AU - Voigt, Thomas AU - Malonn, Tim AU - Shah, Surendra PY - 2006/05// UR - http://dx.doi.org/10.1016/j.cemconres.2005.09.005 ER -