The authors would like to thank the reviewers for their thoughtful comments and efforts towards improving our manuscript.This work was supported by the REMINE Programme for Research and Innovation Horizon 2020 Marie Sklodowska-Curie Actions and RRRMAKER H2020-MSCA-RISE-2020 (Marie Sklodowska-Curie Research and Innovation Staff Exchange and was carried out under the auspices of Research Groups RNM 0179 and HUM 629 of the Junta de Andalucia. Funding for open access charge: Universidad de Granada/CBUAThis research evaluates the chromatic behavior of gypsum-based pastes containing added pigments which enable
their use in both new construction projects as well as in restoration interventions for built heritage. Furthermore,
the impact of adding pigments to the aforementioned material after twenty-eight and ninety days has also been
studied. This was confirmed by carrying out compositional, mineralogical and physical studies of the raw materials
and the pastes. The results indicate that all of the pastes studied have suitable mechanical strength values
for the type of pastes studied, thereby confirming their suitability for on-site use based on their characteristics
and behavior. Colorimetric analysis showed color variations that were clearly perceptible to the human eye,
related to increases in luminosity which significantly exceeded 100%, and also to saturation losses featuring
percentage variations of more than 100% on assessment after ninety days. This colorimetric analysis by means of
quantitative spectrophotometry is of vital importance when determining the loss of color intensity of the pastes
used, since subjective observation results in serious errors of interpretation. This type of study reflects the use of
instrumental color measurements for this type of materials and mixtures.REMINE Programme for Research and Innovation Horizon 2020 Marie Sklodowska-Curie ActionsRRRMAKER H2020-MSCA-RISE-2020 (Marie Sklodowska-Curie Research and Innovation Staff ExchangeJunta de Andalucia RNM 0179
HUM 629Universidad de Granada/CBU