Subject area	Coconut fibre, acoustic, reinforced concrete, compressive strength, cement, concrete
More specific subject area	Concrete, acoustic, coconut fibre, compressive strength.
Type of data	Figures and graphs
How data were acquired	Laboratory experiment and use of relevant standards
Data format	Raw and analyzed
Experimental factors	The extraction process of fibre was done by beating the back of the husk in the dry state and by soaking in water and chemical. The percentage of concentration of NaOH used was 1%. The former was done to ensure that fibre remained in the untreated state for use in concrete.
Experimental features	The acoustic data of coconut fibre-reinforced concrete were determined by subjecting a concrete panel (15 cm × 15 cm × 15 cm) produced from 1:3:3 mix ratio to a wooden box together with loudspeaker to amplify generated frequency. Digital sound level meter was used to measure the sound frequency.
Data source location	Lagos and Ogun States, Nigeria.
Data accessibility	The data are available within this article.