The aim of this study is to investigate the inuences of cement types on chloride diffusion coefficient of concrete and develop a prediction model for chloride diffusion coefficient of concrete in terms of material parameters including "Type of cement", "Amount of fly ash", "Amount of slag", “Grade of fly ash” , “Grade of slag” , “Test method ” and "Water-binder ratio".

Description of the data and file structure

The dataset contains a total of 8 tables and 1270 sets of data. Tables 1 and 2 provide experimental data for ordinary concrete (OPC). Table 3 and
Table 4 are the experimental data of concrete mixed with fly ash (FA) and slag (SG). Table 5 is the experimental data of concrete mixed with fly ash (FA).Table 6 is the experimental data of concrete mixed with slag .Table 7 is the constant voltage RCM data for ordinary concrete.Table 8 is the variable voltage RCM data for ordinary concrete.

Variables and Definitions in tables 1~8

Reference: represents the reference of the data source
Type of cement: represents the type of cement in concrete which include POP, and P
PO: represents ordinary Portland cement accorded with by China's GB/T 175-2007
P, P: represents Portland cement accorded with by China's GB/T 175-2007
32.5, 42.5, 42.5R, 52.5, 52.5R: represent the strength grade of cement accorded with by China's GB/T 175-2007
Amount of fly ash: represents the amount of fly ash (as a percentage of the mass of the cementitious material)
Amount of slag: represents the amount of slag (as a percentage of the mass of the cementitious material)
Water-binder ratio: refers to the ratio of the water consumption per cubic meter of concrete to the amount of all cementitious materials used.
Chloride diffusion coefficient: tested by the rapid chloride migration test (RCM) at the reference period of 28 days collected from reference based on the following criteria: cement type are the ordinary Portland cement (OPC) or the Portland cement (PC);
Grade of fly ash: represents the quality grade of fly ash in accordance with the Chinese standard GB/T 1596 "Fly ash for use in cement and concrete"
1：represents the quality grade of fly ash is class1
2：represents the quality grade of fly ash is class2

Grade of slag: represents the quality grade of slag in accordance with the Chinese standard GB/T 18046 "Ground granulated blast furnace slag used for cement, mortar and concrete"\
S75：represents the quality grade of slag is S75\
S95：represents the quality grade of slag is S95

S105：represents the quality grade of slag is S105

Test method: represents the RCM test adopted to measure the diffusion coefficient of concrete is categorized into two method: the constant voltage method and the variable voltage method " \
variable voltage RCM：represents the method should comply with GB/T 50082 and NTBUILD-492\
constant voltage RCM：represents the method should comply with the IBAC method of Germany's Anchen University of technology and JTG/T B07-01-2006

This database collects the chloride ion diffusion coefficient measured by RCM method (including the method adopted by the Nordic standard NT Build 492, the IBAC method of Germany's Anchen University of technology, as well as the methods adopted by China's GB/T 50082-2009 and JTG/T B07-01-2006); The curing method is standard curing.

Version changes

13-may-2024: Table 5 was added into the file "Experimental data for chloride diffusion coefficient of concrete by rapid chloride migration test.xls", which includes 209 sets of test data for the chloride diffusion coefficient of fly ash concrete.

10-sep-2024: After verification, 13 sets of duplicate chloride diffusion coefficient test data for fly ash concrete were removed from Table 5 in the file "Experimental data for chloride diffusion coefficient of concrete by rapid chloride migration test.xls".

14-jan-2025: Table 6 was added into the file "Experimental data for chloride diffusion coefficient of concrete by rapid chloride migration test.xls", including 223 sets of test data for the chloride diffusion coefficient of slag concrete. Tables 7 and  8 were added into the file "Experimental data for chloride diffusion coefficient of concrete by rapid chloride migration test.xls", including 99 and 153 datasets for the chloride diffusion coefficient of ordinary concrete respectively. The RCM test adopted to measure the diffusion coefficient of concrete is categorized into two method: the constant voltage method and the variable voltage method. The constant voltage method should comply with the Chinese standard JTG/T B07-01-2006 and the IBAC method of Germany's Anchen University of technology. The variable voltage method should comply with the Chinese standard GB/T 50082 and Nordic standard NTBUILD-492 . The data presented in Table 7 and Table 8 further differentiate the RCM testing methodologies. Specifically, Table 7 employs the constant voltage RCM method, whereas Table 8 utilizes the variable voltage RCM method.